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<div class="pre-content"><div><div class="bk_prnt"><p class="small">NCBI Bookshelf. A service of the National Library of Medicine, National Institutes of Health.</p><p>Probe Reports from the NIH Molecular Libraries Program [Internet]. Bethesda (MD): National Center for Biotechnology Information (US); 2010-. </p></div><div class="iconblock clearfix whole_rhythm no_top_margin bk_noprnt"><a class="img_link icnblk_img" title="Table of Contents Page" href="/books/n/mlprobe/"><img class="source-thumb" src="/corehtml/pmc/pmcgifs/bookshelf/thumbs/th-mlprobe-lrg.png" alt="Cover of Probe Reports from the NIH Molecular Libraries Program" height="100px" width="80px" /></a><div class="icnblk_cntnt eight_col"><h2>Probe Reports from the NIH Molecular Libraries Program [Internet].</h2><a data-jig="ncbitoggler" href="#__NBK47354_dtls__">Show details</a><div style="display:none" class="ui-widget" id="__NBK47354_dtls__"><div>Bethesda (MD): National Center for Biotechnology Information (US); 2010-.</div></div><div class="half_rhythm"><ul class="inline_list"><li style="margin-right:1em"><a class="bk_cntns" href="/books/n/mlprobe/">Contents</a></li></ul></div><div class="bk_noprnt"><form method="get" action="/books/n/mlprobe/" id="bk_srch"><div class="bk_search"><label for="bk_term" class="offscreen_noflow">Search term</label><input type="text" title="Search this book" id="bk_term" name="term" value="" data-jig="ncbiclearbutton" /> <input type="submit" class="jig-ncbibutton" value="Search this book" submit="false" style="padding: 0.1em 0.4em;" /></div></form></div></div><div class="icnblk_cntnt two_col"><div class="pagination bk_noprnt"><a class="active page_link prev" href="/books/n/mlprobe/ml076/" title="Previous page in this title">&lt; Prev</a><a class="active page_link next" href="/books/n/mlprobe/ml071/" title="Next page in this title">Next &gt;</a></div></div></div></div></div>
<div class="main-content lit-style" itemscope="itemscope" itemtype="http://schema.org/CreativeWork"><div class="meta-content fm-sec"><h1 id="_NBK47354_"><span class="title" itemprop="name">Probe Report for NPY-Y2 Receptor Antagonists</span></h1><p class="contrib-group"><span itemprop="author">SA Saldanha</span>, <span itemprop="author">SP Brothers</span>, <span itemprop="author">T Spicer</span>, <span itemprop="author">M Cameron</span>, <span itemprop="author">BA Mercer</span>, <span itemprop="author">P Chase</span>, <span itemprop="author">P McDonald</span>, <span itemprop="author">C Wahlestedt</span>, and <span itemprop="author">PS Hodder</span>.</p><p class="small">Received: <span itemprop="datePublished">January 13, 2009</span>; Last Update: <span itemprop="dateModified">August 6, 2010</span>.</p></div><div class="jig-ncbiinpagenav body-content whole_rhythm" data-jigconfig="allHeadingLevels: ['h2'],smoothScroll: false" itemprop="text"><div id="_abs_rndgid_" itemprop="description"><p>Due to its expression profile and biological action, neuropeptide Y (NPY)-Y2 receptor (Y2R) is an attractive G protein-coupled receptor (GPCR) target for anxiolytic research. Additionally, NPY-Y2R is predicted to be a therapeutic target in alcoholism. Four different compounds, ML075 (CID-2936384), ML074 (CID-2228302), ML073 (CID-3236979) and ML072 (CID-4460128) are claimed as novel antagonist probes to the NPY-Y2R, producing increased cAMP (3',5'-cyclic-AMP phosphodiesterase) levels. These probes demonstrate submicromolar affinity to the Y2 receptor, do not antagonize NPY-Y1R, do not present significant cytotoxicity, and are blood-brain barrier penetrant. Hence, these probes represent an improvement over previously described NPY-Y2R antagonists and offer greater promise to serve as valuable in vivo pharmacological probes for elucidating the Y2R signaling pathway.</p></div><div class="h2"></div><p><b>Assigned Assay Grant #:</b> 1 R21 NS056950-01</p><p><b>Screening Center Name &#x00026; PI:</b> Scripps Research Institute Molecular
Screening Center (SRIMSC); Hugh Rosen</p><p><b>Chemistry Center Name &#x00026; PI:</b> SRIMSC; Hugh Rosen</p><p><b>Assay Submitter &#x00026; Institution:</b> Claes Wahlestedt, The Scripps
Research Institute (TSRI)</p><p><b>PubChem Summary Bioassay Identifier (AID):</b>
<a href="https://pubchem.ncbi.nlm.nih.gov/bioassay/1791" ref="pagearea=body&amp;targetsite=entrez&amp;targetcat=link&amp;targettype=pubchem">AID-1791</a></p><div id="ml075.s1"><h2 id="_ml075_s1_">Probe Structure &#x00026; Characteristics</h2><p>Four different compounds are claimed as novel antagonist probes to the NPY-Y2
receptor. These four probes demonstrate sub-micromolar affinity to the Y2 receptor,
do not antagonize the Y1R receptor, and do not present significant cytotoxicity.
Additionally, they are all blood-brain barrier penetrant. In this regard they all
represent an improvement over the current NPY Y2 antagonist probe, BIIE 0246. The
four probes are illustrated below:</p><div id="ml075.fu1" class="figure bk_fig"><div class="graphic"><img src="/books/NBK47354/bin/ml075fu1.jpg" alt="Scaffold 1 (Piperidine carbothioamide) [ML075]." /></div><h3><span class="title">Scaffold 1 (Piperidine carbothioamide) [ML075]</span></h3></div><div id="ml075.fu2" class="figure bk_fig"><div class="graphic"><img src="/books/NBK47354/bin/ml075fu2.jpg" alt="Scaffold 2 (Arysulfamoyl benzamide) [ML074]." /></div><h3><span class="title">Scaffold 2 (Arysulfamoyl benzamide) [ML074]</span></h3></div><div id="ml075.fu3" class="figure bk_fig"><div class="graphic"><img src="/books/NBK47354/bin/ml075fu3.jpg" alt="Scaffold 3 (Aryl-1,2,4-oxadiazole) [ML073]." /></div><h3><span class="title">Scaffold 3 (Aryl-1,2,4-oxadiazole) [ML073]</span></h3></div><div id="ml075.fu4" class="figure bk_fig"><div class="graphic"><img src="/books/NBK47354/bin/ml075fu4.jpg" alt="Scaffold 4 (Dimethylisoxazole) [ML072]." /></div><h3><span class="title">Scaffold 4 (Dimethylisoxazole) [ML072]</span></h3></div><div id="ml075.tu1" class="table"><p class="large-table-link" style="display:none"><span class="right"><a href="/books/NBK47354/table/ml075.tu1/?report=objectonly" target="object">View in own window</a></span></p><div class="large_tbl" id="__ml075.tu1_lrgtbl__"><table><thead><tr><th id="hd_h_ml075.tu1_1_1_1_1" rowspan="1" colspan="1" style="text-align:center;vertical-align:top;">Scaffold ID</th><th id="hd_h_ml075.tu1_1_1_1_2" rowspan="1" colspan="1" style="text-align:center;vertical-align:middle;">Scaffold Name</th><th id="hd_h_ml075.tu1_1_1_1_3" rowspan="1" colspan="1" style="text-align:center;vertical-align:middle;">CID/ML</th><th id="hd_h_ml075.tu1_1_1_1_4" rowspan="1" colspan="1" style="text-align:center;vertical-align:middle;">SID</th><th id="hd_h_ml075.tu1_1_1_1_5" rowspan="1" colspan="1" style="text-align:center;vertical-align:middle;">Target (NPY Y2) IC<sub>50</sub>
(&#x003bc;M)</th><th id="hd_h_ml075.tu1_1_1_1_6" rowspan="1" colspan="1" style="text-align:center;vertical-align:middle;">Anti-Target (NPY Y1) IC<sub>50</sub>
(&#x003bc;M)</th><th id="hd_h_ml075.tu1_1_1_1_7" rowspan="1" colspan="1" style="text-align:center;vertical-align:middle;">Secondary Assay CC<sub>50</sub>
(&#x003bc;M)</th><th id="hd_h_ml075.tu1_1_1_1_8" rowspan="1" colspan="1" style="text-align:center;vertical-align:top;">Brain Penetrance (ng/mL)</th></tr></thead><tbody><tr><td headers="hd_h_ml075.tu1_1_1_1_1" rowspan="1" colspan="1" style="text-align:center;vertical-align:middle;">1</td><td headers="hd_h_ml075.tu1_1_1_1_2" rowspan="1" colspan="1" style="text-align:center;vertical-align:middle;">Piperidine carbothioamide</td><td headers="hd_h_ml075.tu1_1_1_1_3" rowspan="1" colspan="1" style="text-align:center;vertical-align:middle;">2936384/<a href="/pcsubstance/?term=ML075[synonym]" ref="pagearea=body&amp;targetsite=entrez&amp;targetcat=term&amp;targettype=pubchem">ML075</a></td><td headers="hd_h_ml075.tu1_1_1_1_4" rowspan="1" colspan="1" style="text-align:center;vertical-align:middle;"><a href="https://pubchem.ncbi.nlm.nih.gov/substance/17507305" ref="pagearea=body&amp;targetsite=entrez&amp;targetcat=link&amp;targettype=pubchem">17507305</a></td><td headers="hd_h_ml075.tu1_1_1_1_5" rowspan="1" colspan="1" style="text-align:center;vertical-align:middle;">0.220
[<a href="https://pubchem.ncbi.nlm.nih.gov/bioassay/1272" ref="pagearea=body&amp;targetsite=entrez&amp;targetcat=link&amp;targettype=pubchem">AID-1272</a>]</td><td headers="hd_h_ml075.tu1_1_1_1_6" rowspan="1" colspan="1" style="text-align:center;vertical-align:middle;">&#x0003e;35
[<a href="https://pubchem.ncbi.nlm.nih.gov/bioassay/1279" ref="pagearea=body&amp;targetsite=entrez&amp;targetcat=link&amp;targettype=pubchem">AID-1279</a>]</td><td headers="hd_h_ml075.tu1_1_1_1_7" rowspan="1" colspan="1" style="text-align:center;vertical-align:middle;">74</td><td headers="hd_h_ml075.tu1_1_1_1_8" rowspan="1" colspan="1" style="text-align:center;vertical-align:middle;">1656 &#x000b1; 749</td></tr><tr><td headers="hd_h_ml075.tu1_1_1_1_1" rowspan="1" colspan="1" style="text-align:center;vertical-align:middle;">2</td><td headers="hd_h_ml075.tu1_1_1_1_2" rowspan="1" colspan="1" style="text-align:center;vertical-align:middle;">Arysulfamoylbenzamide</td><td headers="hd_h_ml075.tu1_1_1_1_3" rowspan="1" colspan="1" style="text-align:center;vertical-align:middle;">2228302/<a href="/pcsubstance/?term=ML074[synonym]" ref="pagearea=body&amp;targetsite=entrez&amp;targetcat=term&amp;targettype=pubchem">ML074</a></td><td headers="hd_h_ml075.tu1_1_1_1_4" rowspan="1" colspan="1" style="text-align:center;vertical-align:middle;"><a href="https://pubchem.ncbi.nlm.nih.gov/substance/17413392" ref="pagearea=body&amp;targetsite=entrez&amp;targetcat=link&amp;targettype=pubchem">17413392</a></td><td headers="hd_h_ml075.tu1_1_1_1_5" rowspan="1" colspan="1" style="text-align:center;vertical-align:middle;">0.428
[<a href="https://pubchem.ncbi.nlm.nih.gov/bioassay/1272" ref="pagearea=body&amp;targetsite=entrez&amp;targetcat=link&amp;targettype=pubchem">AID-1272</a>]</td><td headers="hd_h_ml075.tu1_1_1_1_6" rowspan="1" colspan="1" style="text-align:center;vertical-align:middle;">&#x0003e;35.4
[<a href="https://pubchem.ncbi.nlm.nih.gov/bioassay/1279" ref="pagearea=body&amp;targetsite=entrez&amp;targetcat=link&amp;targettype=pubchem">AID-1279</a>]</td><td headers="hd_h_ml075.tu1_1_1_1_7" rowspan="1" colspan="1" style="text-align:center;vertical-align:middle;">20.6</td><td headers="hd_h_ml075.tu1_1_1_1_8" rowspan="1" colspan="1" style="text-align:center;vertical-align:middle;">395 &#x000b1; 16</td></tr><tr><td headers="hd_h_ml075.tu1_1_1_1_1" rowspan="1" colspan="1" style="text-align:center;vertical-align:middle;">3</td><td headers="hd_h_ml075.tu1_1_1_1_2" rowspan="1" colspan="1" style="text-align:center;vertical-align:middle;">Aryl-1,2,4-oxadiazole</td><td headers="hd_h_ml075.tu1_1_1_1_3" rowspan="1" colspan="1" style="text-align:center;vertical-align:middle;">3236979/<a href="/pcsubstance/?term=ML073[synonym]" ref="pagearea=body&amp;targetsite=entrez&amp;targetcat=term&amp;targettype=pubchem">ML073</a></td><td headers="hd_h_ml075.tu1_1_1_1_4" rowspan="1" colspan="1" style="text-align:center;vertical-align:middle;"><a href="https://pubchem.ncbi.nlm.nih.gov/substance/4242079" ref="pagearea=body&amp;targetsite=entrez&amp;targetcat=link&amp;targettype=pubchem">4242079</a></td><td headers="hd_h_ml075.tu1_1_1_1_5" rowspan="1" colspan="1" style="text-align:center;vertical-align:middle;">0.733 [<a href="https://pubchem.ncbi.nlm.nih.gov/bioassay/1272" ref="pagearea=body&amp;targetsite=entrez&amp;targetcat=link&amp;targettype=pubchem">AID-1272</a>]</td><td headers="hd_h_ml075.tu1_1_1_1_6" rowspan="1" colspan="1" style="text-align:center;vertical-align:middle;">&#x0003e;35 [<a href="https://pubchem.ncbi.nlm.nih.gov/bioassay/1279" ref="pagearea=body&amp;targetsite=entrez&amp;targetcat=link&amp;targettype=pubchem">AID-1279</a>]</td><td headers="hd_h_ml075.tu1_1_1_1_7" rowspan="1" colspan="1" style="text-align:center;vertical-align:middle;">&#x0003e;99</td><td headers="hd_h_ml075.tu1_1_1_1_8" rowspan="1" colspan="1" style="text-align:center;vertical-align:middle;">1860 &#x000b1; 135</td></tr><tr><td headers="hd_h_ml075.tu1_1_1_1_1" rowspan="1" colspan="1" style="text-align:center;vertical-align:middle;">4</td><td headers="hd_h_ml075.tu1_1_1_1_2" rowspan="1" colspan="1" style="text-align:center;vertical-align:middle;">Dimethylisoxazole</td><td headers="hd_h_ml075.tu1_1_1_1_3" rowspan="1" colspan="1" style="text-align:center;vertical-align:middle;">4460128/<a href="/pcsubstance/?term=ML072[synonym]" ref="pagearea=body&amp;targetsite=entrez&amp;targetcat=term&amp;targettype=pubchem">ML072</a></td><td headers="hd_h_ml075.tu1_1_1_1_4" rowspan="1" colspan="1" style="text-align:center;vertical-align:middle;"><a href="https://pubchem.ncbi.nlm.nih.gov/substance/22413249" ref="pagearea=body&amp;targetsite=entrez&amp;targetcat=link&amp;targettype=pubchem">22413249</a></td><td headers="hd_h_ml075.tu1_1_1_1_5" rowspan="1" colspan="1" style="text-align:center;vertical-align:middle;">3.917 [<a href="https://pubchem.ncbi.nlm.nih.gov/bioassay/1272" ref="pagearea=body&amp;targetsite=entrez&amp;targetcat=link&amp;targettype=pubchem">AID-1272</a>]</td><td headers="hd_h_ml075.tu1_1_1_1_6" rowspan="1" colspan="1" style="text-align:center;vertical-align:middle;">&#x0003e;35.4 [<a href="https://pubchem.ncbi.nlm.nih.gov/bioassay/1279" ref="pagearea=body&amp;targetsite=entrez&amp;targetcat=link&amp;targettype=pubchem">AID-1279</a>]</td><td headers="hd_h_ml075.tu1_1_1_1_7" rowspan="1" colspan="1" style="text-align:center;vertical-align:middle;">&#x0003e;99</td><td headers="hd_h_ml075.tu1_1_1_1_8" rowspan="1" colspan="1" style="text-align:center;vertical-align:middle;">513 &#x000b1; 57</td></tr></tbody></table></div></div></div><div id="ml075.s2"><h2 id="_ml075_s2_">Recommendations for the scientific use of this probe</h2><p>These probes are useful for assays aiming to block cellular NPY Y2 receptor (Y2R)
signaling, leading to increased cAMP levels, without inhibiting NPY Y1 receptor
(Y1R) activity. The representative (&#x0201c;best-in-class&#x0201d;)
compounds from scaffold 1 (<b><a href="https://pubchem.ncbi.nlm.nih.gov/substance/17507305" ref="pagearea=body&amp;targetsite=entrez&amp;targetcat=link&amp;targettype=pubchem">SID-17507305</a></b>), scaffold 2
(<b><a href="https://pubchem.ncbi.nlm.nih.gov/substance/17413392" ref="pagearea=body&amp;targetsite=entrez&amp;targetcat=link&amp;targettype=pubchem">SID-17413392</a></b>), scaffold 3 (<b><a href="https://pubchem.ncbi.nlm.nih.gov/substance/4242079" ref="pagearea=body&amp;targetsite=entrez&amp;targetcat=link&amp;targettype=pubchem">SID-4242079</a></b>), and scaffold
4 (<b><a href="https://pubchem.ncbi.nlm.nih.gov/substance/22413249" ref="pagearea=body&amp;targetsite=entrez&amp;targetcat=link&amp;targettype=pubchem">SID-22413249</a></b>) displace agonist from the Y2R with high affinity. These
probes bind to fewer off-target receptors than BIIE 0246, currently the most widely
used Y2R antagonist. Most importantly, and in contrast to BIIE 0246, these
best-in-class probes are brain penetrant and thus able to reach Y2R binding sites in
both the periphery and brain. Additional information regarding the compounds and
assays employed in this probe development campaign can be found in (<a class="bk_pop" href="#ml075.r1">1</a>).</p></div><div id="ml075.s3"><h2 id="_ml075_s3_">1. Scientific Rationale for Project</h2><p>Due to its expression profile and biological action, NPY Y2 is an attractive GPCR
target for anxiolytic research. Additionally, Y2 is predicted to be a therapeutic
target in alcoholism. It has been reported, however, that the complex structure and
high molecular weight of BIIE 0246 (the current NPY Y2 antagonist) limit its
usefulness as an <i>in vivo</i> pharmacological tool (<a class="bk_pop" href="#ml075.r2">2</a>). It is therefore necessary to produce brain penetrant,
high affinity selective ligands for the Y2 receptor.</p></div><div id="ml075.s4"><h2 id="_ml075_s4_">2. Project Description</h2><div id="ml075.s2b"><h3>a. Information for each Assay Implemented and Screening Run</h3><div id="ml075.s2bi"><h4>i. PubChem Bioassay Name(s), AID(s), Assay-Type (Primary, DR, Counterscreen,
Secondary)</h4><div id="ml075.t1" class="table"><h3><span class="label">Table 2</span><span class="title">PubChem BioAssay</span></h3><p class="large-table-link" style="display:none"><span class="right"><a href="/books/NBK47354/table/ml075.t1/?report=objectonly" target="object">View in own window</a></span></p><div class="large_tbl" id="__ml075.t1_lrgtbl__"><table class="no_top_margin"><thead><tr><th id="hd_h_ml075.t1_1_1_1_1" rowspan="1" colspan="1" style="text-align:center;vertical-align:middle;">AID</th><th id="hd_h_ml075.t1_1_1_1_2" rowspan="1" colspan="1" style="text-align:center;vertical-align:middle;">Assay Name</th><th id="hd_h_ml075.t1_1_1_1_3" rowspan="1" colspan="1" style="text-align:center;vertical-align:middle;">Assay Type</th><th id="hd_h_ml075.t1_1_1_1_4" rowspan="1" colspan="1" style="text-align:center;vertical-align:middle;">Target</th><th id="hd_h_ml075.t1_1_1_1_5" rowspan="1" colspan="1" style="text-align:center;vertical-align:middle;">Powder Sample</th><th id="hd_h_ml075.t1_1_1_1_6" rowspan="1" colspan="1" style="text-align:center;vertical-align:middle;">Compound Concentration</th></tr></thead><tbody><tr><td headers="hd_h_ml075.t1_1_1_1_1" rowspan="1" colspan="1" style="text-align:center;vertical-align:middle;"><a href="https://pubchem.ncbi.nlm.nih.gov/bioassay/793" ref="pagearea=body&amp;targetsite=entrez&amp;targetcat=link&amp;targettype=pubchem">793</a></td><td headers="hd_h_ml075.t1_1_1_1_2" rowspan="1" colspan="1" style="text-align:left;vertical-align:middle;">Primary cell based
high-throughput screening assay for antagonists of
neuropeptide Y receptor Y2.</td><td headers="hd_h_ml075.t1_1_1_1_3" rowspan="1" colspan="1" style="text-align:center;vertical-align:middle;">Primary Assay (1X
%INH)</td><td headers="hd_h_ml075.t1_1_1_1_4" rowspan="1" colspan="1" style="text-align:center;vertical-align:middle;">NPY-Y2</td><td headers="hd_h_ml075.t1_1_1_1_5" rowspan="1" colspan="1" style="text-align:center;vertical-align:middle;">No</td><td headers="hd_h_ml075.t1_1_1_1_6" rowspan="1" colspan="1" style="text-align:center;vertical-align:middle;">2.7&#x003bc;M</td></tr><tr><td headers="hd_h_ml075.t1_1_1_1_1" rowspan="1" colspan="1" style="text-align:center;vertical-align:middle;"><a href="https://pubchem.ncbi.nlm.nih.gov/bioassay/1256" ref="pagearea=body&amp;targetsite=entrez&amp;targetcat=link&amp;targettype=pubchem">1256</a></td><td headers="hd_h_ml075.t1_1_1_1_2" rowspan="1" colspan="1" style="text-align:left;vertical-align:middle;">Counterscreen assay for
antagonists of neuropeptide Y receptor Y2 (NPY-Y2):
Cell-based high throughput assay to measure NPY-Y1
antagonism.</td><td headers="hd_h_ml075.t1_1_1_1_3" rowspan="1" colspan="1" style="text-align:center;vertical-align:middle;">Counterscreen Assay (3X
%INH)</td><td headers="hd_h_ml075.t1_1_1_1_4" rowspan="1" colspan="1" style="text-align:center;vertical-align:middle;">NPY-Y1</td><td headers="hd_h_ml075.t1_1_1_1_5" rowspan="1" colspan="1" style="text-align:center;vertical-align:middle;">No</td><td headers="hd_h_ml075.t1_1_1_1_6" rowspan="1" colspan="1" style="text-align:center;vertical-align:middle;">3.6 &#x003bc;M</td></tr><tr><td headers="hd_h_ml075.t1_1_1_1_1" rowspan="1" colspan="1" style="text-align:center;vertical-align:middle;"><a href="https://pubchem.ncbi.nlm.nih.gov/bioassay/1257" ref="pagearea=body&amp;targetsite=entrez&amp;targetcat=link&amp;targettype=pubchem">1257</a></td><td headers="hd_h_ml075.t1_1_1_1_2" rowspan="1" colspan="1" style="text-align:left;vertical-align:middle;">Cell-based high throughput
confirmation assay for antagonists of neuropeptide Y
receptor.</td><td headers="hd_h_ml075.t1_1_1_1_3" rowspan="1" colspan="1" style="text-align:center;vertical-align:middle;">Confirmation Assay (3X
%INH)</td><td headers="hd_h_ml075.t1_1_1_1_4" rowspan="1" colspan="1" style="text-align:center;vertical-align:middle;">NPY-Y2</td><td headers="hd_h_ml075.t1_1_1_1_5" rowspan="1" colspan="1" style="text-align:center;vertical-align:middle;">No</td><td headers="hd_h_ml075.t1_1_1_1_6" rowspan="1" colspan="1" style="text-align:center;vertical-align:middle;">2.7 &#x003bc;M</td></tr><tr><td headers="hd_h_ml075.t1_1_1_1_1" rowspan="1" colspan="1" style="text-align:center;vertical-align:middle;"><a href="https://pubchem.ncbi.nlm.nih.gov/bioassay/1272" ref="pagearea=body&amp;targetsite=entrez&amp;targetcat=link&amp;targettype=pubchem">1272</a></td><td headers="hd_h_ml075.t1_1_1_1_2" rowspan="1" colspan="1" style="text-align:left;vertical-align:middle;">Dose response cell-based
screening assay for antagonists of neuropeptide Y receptor
Y2.</td><td headers="hd_h_ml075.t1_1_1_1_3" rowspan="1" colspan="1" style="text-align:center;vertical-align:middle;">Dose Response (3X
IC<sub>50</sub>)</td><td headers="hd_h_ml075.t1_1_1_1_4" rowspan="1" colspan="1" style="text-align:center;vertical-align:middle;">NPY-Y2</td><td headers="hd_h_ml075.t1_1_1_1_5" rowspan="1" colspan="1" style="text-align:center;vertical-align:middle;">No</td><td headers="hd_h_ml075.t1_1_1_1_6" rowspan="1" colspan="1" style="text-align:center;vertical-align:middle;">10-point, 1:3 dilution
starting at 35 &#x003bc;M</td></tr><tr><td headers="hd_h_ml075.t1_1_1_1_1" rowspan="1" colspan="1" style="text-align:center;vertical-align:middle;"><a href="https://pubchem.ncbi.nlm.nih.gov/bioassay/1040" ref="pagearea=body&amp;targetsite=entrez&amp;targetcat=link&amp;targettype=pubchem">1040</a></td><td headers="hd_h_ml075.t1_1_1_1_2" rowspan="1" colspan="1" style="text-align:left;vertical-align:middle;">Primary cell-based
high-throughput screening assay for antagonists of
NPY-Y1</td><td headers="hd_h_ml075.t1_1_1_1_3" rowspan="1" colspan="1" style="text-align:center;vertical-align:middle;">Primary Assay (1X
%INH)</td><td headers="hd_h_ml075.t1_1_1_1_4" rowspan="1" colspan="1" style="text-align:center;vertical-align:middle;">NPY-Y1</td><td headers="hd_h_ml075.t1_1_1_1_5" rowspan="1" colspan="1" style="text-align:center;vertical-align:middle;">No</td><td headers="hd_h_ml075.t1_1_1_1_6" rowspan="1" colspan="1" style="text-align:center;vertical-align:middle;">3.6 &#x003bc;M</td></tr><tr><td headers="hd_h_ml075.t1_1_1_1_1" rowspan="1" colspan="1" style="text-align:center;vertical-align:middle;"><a href="https://pubchem.ncbi.nlm.nih.gov/bioassay/1279" ref="pagearea=body&amp;targetsite=entrez&amp;targetcat=link&amp;targettype=pubchem">1279</a></td><td headers="hd_h_ml075.t1_1_1_1_2" rowspan="1" colspan="1" style="text-align:left;vertical-align:middle;">Dose response counterscreen for
neuropeptide Y receptor Y2 (NPY-Y2): Cell-based high
throughput assay to measure NPY-Y1 antagonism.</td><td headers="hd_h_ml075.t1_1_1_1_3" rowspan="1" colspan="1" style="text-align:center;vertical-align:middle;">Dose Response Counterscreen
(3X IC<sub>50</sub>)</td><td headers="hd_h_ml075.t1_1_1_1_4" rowspan="1" colspan="1" style="text-align:center;vertical-align:middle;">NPY-Y1</td><td headers="hd_h_ml075.t1_1_1_1_5" rowspan="1" colspan="1" style="text-align:center;vertical-align:middle;">No</td><td headers="hd_h_ml075.t1_1_1_1_6" rowspan="1" colspan="1" style="text-align:center;vertical-align:middle;">10-point, 1:3 dilution
starting at 35 &#x003bc;M</td></tr><tr><td headers="hd_h_ml075.t1_1_1_1_1" rowspan="1" colspan="1" style="text-align:center;vertical-align:middle;"><a href="https://pubchem.ncbi.nlm.nih.gov/bioassay/2142" ref="pagearea=body&amp;targetsite=entrez&amp;targetcat=link&amp;targettype=pubchem">2142</a></td><td headers="hd_h_ml075.t1_1_1_1_2" rowspan="1" colspan="1" style="text-align:left;vertical-align:middle;">Late stage results from the
probe development effort to identify antagonists of
neuropeptide Y receptor Y2 (NPY-Y2)</td><td headers="hd_h_ml075.t1_1_1_1_3" rowspan="1" colspan="1" style="text-align:center;vertical-align:middle;">Various (Cytotoxicity and
Brain Penetrance assays)</td><td headers="hd_h_ml075.t1_1_1_1_4" rowspan="1" colspan="1" style="text-align:center;vertical-align:middle;">NPY-Y2</td><td headers="hd_h_ml075.t1_1_1_1_5" rowspan="1" colspan="1" style="text-align:center;vertical-align:middle;">Yes</td><td headers="hd_h_ml075.t1_1_1_1_6" rowspan="1" colspan="1" style="text-align:center;vertical-align:middle;">Various</td></tr></tbody></table></div></div></div><div id="ml075.s6"><h4>ii. Assay Rationale &#x00026; Description</h4><div id="ml075.t2" class="table"><h3><span class="label">Table 3</span><span class="title">Assay Rationale and Description</span></h3><p class="large-table-link" style="display:none"><span class="right"><a href="/books/NBK47354/table/ml075.t2/?report=objectonly" target="object">View in own window</a></span></p><div class="large_tbl" id="__ml075.t2_lrgtbl__"><table class="no_top_margin"><thead><tr><th id="hd_h_ml075.t2_1_1_1_1" rowspan="1" colspan="1" style="text-align:center;vertical-align:bottom;">AID</th><th id="hd_h_ml075.t2_1_1_1_2" rowspan="1" colspan="1" style="text-align:center;vertical-align:bottom;">Assay Rationale</th><th id="hd_h_ml075.t2_1_1_1_3" rowspan="1" colspan="1" style="text-align:center;vertical-align:bottom;">Assay Description</th><th id="hd_h_ml075.t2_1_1_1_4" rowspan="1" colspan="1" style="text-align:center;vertical-align:middle;">Z&#x02032;</th><th id="hd_h_ml075.t2_1_1_1_5" rowspan="1" colspan="1" style="text-align:center;vertical-align:middle;">S:B</th></tr></thead><tbody><tr><td headers="hd_h_ml075.t2_1_1_1_1" rowspan="1" colspan="1" style="text-align:center;vertical-align:middle;"><a href="https://pubchem.ncbi.nlm.nih.gov/bioassay/793" ref="pagearea=body&amp;targetsite=entrez&amp;targetcat=link&amp;targettype=pubchem">793</a></td><td headers="hd_h_ml075.t2_1_1_1_2" rowspan="1" colspan="1" style="text-align:left;vertical-align:middle;">The purpose of this assay is to
determine the ability of test compounds to inhibit NPY Y2
activity.</td><td headers="hd_h_ml075.t2_1_1_1_3" rowspan="1" colspan="1" style="text-align:left;vertical-align:top;">In this assay test compounds are
screened for their ability to increase agonist-mediated cAMP
levels in a cell line transfected with the NPY-Y2 receptor
and a cyclic-nucleotide gated channel (CNG). The cells are
treated with isoproterenol to activate adenylate cyclase and
open the CNG channel, leading to a change in membrane
potential that is measured using a fluorescent probe. The
addition of the agonist NPY peptide counteracts cAMP
accumulation induced by isoproterenol. As designed, test
compounds that act as NPY-Y2 receptor antagonists will
reverse the reduction in well fluorescence.</td><td headers="hd_h_ml075.t2_1_1_1_4" rowspan="1" colspan="1" style="text-align:center;vertical-align:middle;">0.78+/&#x02212; 0.04</td><td headers="hd_h_ml075.t2_1_1_1_5" rowspan="1" colspan="1" style="text-align:center;vertical-align:middle;">5.09
+/&#x02212; 0.33</td></tr><tr><td headers="hd_h_ml075.t2_1_1_1_1" rowspan="1" colspan="1" style="text-align:center;vertical-align:middle;"><a href="https://pubchem.ncbi.nlm.nih.gov/bioassay/1256" ref="pagearea=body&amp;targetsite=entrez&amp;targetcat=link&amp;targettype=pubchem">1256</a></td><td headers="hd_h_ml075.t2_1_1_1_2" rowspan="1" colspan="1" style="text-align:left;vertical-align:middle;">The purpose of this assay is to
determine the ability of test compounds to inhibit NPY Y1
activity.</td><td headers="hd_h_ml075.t2_1_1_1_3" rowspan="1" colspan="1" style="text-align:left;vertical-align:middle;">Same as <a href="https://pubchem.ncbi.nlm.nih.gov/bioassay/793" ref="pagearea=body&amp;targetsite=entrez&amp;targetcat=link&amp;targettype=pubchem">AID-793</a>, except that
test compounds are tested in triplicate and are incubated
with a cell line that is transfected with the NPY-Y1
receptor.</td><td headers="hd_h_ml075.t2_1_1_1_4" rowspan="1" colspan="1" style="text-align:center;vertical-align:middle;">0.79
+/&#x02212; 0.01</td><td headers="hd_h_ml075.t2_1_1_1_5" rowspan="1" colspan="1" style="text-align:center;vertical-align:middle;">4.28
+/&#x02212; 0.04</td></tr><tr><td headers="hd_h_ml075.t2_1_1_1_1" rowspan="1" colspan="1" style="text-align:center;vertical-align:middle;"><a href="https://pubchem.ncbi.nlm.nih.gov/bioassay/1257" ref="pagearea=body&amp;targetsite=entrez&amp;targetcat=link&amp;targettype=pubchem">1257</a></td><td headers="hd_h_ml075.t2_1_1_1_2" rowspan="1" colspan="1" style="text-align:left;vertical-align:middle;">The purpose of this assay is to
confirm activity of compounds previously identified as
active in a previous set of experiments (PubChem AID
793).</td><td headers="hd_h_ml075.t2_1_1_1_3" rowspan="1" colspan="1" style="text-align:left;vertical-align:middle;">Same as <a href="https://pubchem.ncbi.nlm.nih.gov/bioassay/793" ref="pagearea=body&amp;targetsite=entrez&amp;targetcat=link&amp;targettype=pubchem">AID-793</a>, except that
compounds are tested in triplicate..</td><td headers="hd_h_ml075.t2_1_1_1_4" rowspan="1" colspan="1" style="text-align:center;vertical-align:middle;">0.81+/&#x02212; 0.02</td><td headers="hd_h_ml075.t2_1_1_1_5" rowspan="1" colspan="1" style="text-align:center;vertical-align:middle;">3.99
+/&#x02212; 0.13</td></tr><tr><td headers="hd_h_ml075.t2_1_1_1_1" rowspan="1" colspan="1" style="text-align:center;vertical-align:middle;"><a href="https://pubchem.ncbi.nlm.nih.gov/bioassay/1272" ref="pagearea=body&amp;targetsite=entrez&amp;targetcat=link&amp;targettype=pubchem">1272</a></td><td headers="hd_h_ml075.t2_1_1_1_2" rowspan="1" colspan="1" style="text-align:left;vertical-align:middle;">The purpose of this assay is to
determine dose response curves for compounds identified as
active in a previous set of experiments entitled, "Primary
cell-based high-throughput screening assay for antagonists
of neuropeptide Y receptor Y2 (NPY-Y2)," (PubChem AID
793).</td><td headers="hd_h_ml075.t2_1_1_1_3" rowspan="1" colspan="1" style="text-align:left;vertical-align:middle;">Same as <a href="https://pubchem.ncbi.nlm.nih.gov/bioassay/793" ref="pagearea=body&amp;targetsite=entrez&amp;targetcat=link&amp;targettype=pubchem">AID-793</a>, except that
test compounds were assayed in triplicate in a 10-point, 1:3
dilution series starting at a nominal test concentration of
35 &#x003bc;M.</td><td headers="hd_h_ml075.t2_1_1_1_4" rowspan="1" colspan="1" style="text-align:center;vertical-align:middle;">0.84
+/&#x02212; 0.02</td><td headers="hd_h_ml075.t2_1_1_1_5" rowspan="1" colspan="1" style="text-align:center;vertical-align:middle;">4.04
+/&#x02212; 0.19</td></tr><tr><td headers="hd_h_ml075.t2_1_1_1_1" rowspan="1" colspan="1" style="text-align:center;vertical-align:middle;"><a href="https://pubchem.ncbi.nlm.nih.gov/bioassay/1040" ref="pagearea=body&amp;targetsite=entrez&amp;targetcat=link&amp;targettype=pubchem">1040</a></td><td headers="hd_h_ml075.t2_1_1_1_2" rowspan="1" colspan="1" style="text-align:left;vertical-align:middle;">The purpose of this assay is to
determine the ability of test compounds to inhibit NPY Y1
activity.</td><td headers="hd_h_ml075.t2_1_1_1_3" rowspan="1" colspan="1" style="text-align:left;vertical-align:middle;">Same as <a href="https://pubchem.ncbi.nlm.nih.gov/bioassay/1256" ref="pagearea=body&amp;targetsite=entrez&amp;targetcat=link&amp;targettype=pubchem">AID-1256</a>, except that
test compounds are incubated with a cell line that is
transfected with the NPY-Y1 receptor.</td><td headers="hd_h_ml075.t2_1_1_1_4" rowspan="1" colspan="1" style="text-align:center;vertical-align:middle;">0.65+/&#x02212; 0.06</td><td headers="hd_h_ml075.t2_1_1_1_5" rowspan="1" colspan="1" style="text-align:center;vertical-align:middle;">3.35
+/&#x02212; 0.28</td></tr><tr><td headers="hd_h_ml075.t2_1_1_1_1" rowspan="1" colspan="1" style="text-align:center;vertical-align:middle;"><a href="https://pubchem.ncbi.nlm.nih.gov/bioassay/1279" ref="pagearea=body&amp;targetsite=entrez&amp;targetcat=link&amp;targettype=pubchem">1279</a></td><td headers="hd_h_ml075.t2_1_1_1_2" rowspan="1" colspan="1" style="text-align:left;vertical-align:middle;">The purpose of this assay is to
determine whether compounds identified as active in a
previous set of experiments (PubChem <a href="https://pubchem.ncbi.nlm.nih.gov/bioassay/793" ref="pagearea=body&amp;targetsite=entrez&amp;targetcat=link&amp;targettype=pubchem">AID-793</a>) were
nonselective due to inhibition of the NPY Y1 receptor.</td><td headers="hd_h_ml075.t2_1_1_1_3" rowspan="1" colspan="1" style="text-align:left;vertical-align:middle;">Same as <a href="https://pubchem.ncbi.nlm.nih.gov/bioassay/1272" ref="pagearea=body&amp;targetsite=entrez&amp;targetcat=link&amp;targettype=pubchem">AID-1272</a>, except that
test compounds are incubated with a cell line that is
transfected with the NPY-Y1 receptor.</td><td headers="hd_h_ml075.t2_1_1_1_4" rowspan="1" colspan="1" style="text-align:center;vertical-align:middle;">0.70+/&#x02212; 0.10</td><td headers="hd_h_ml075.t2_1_1_1_5" rowspan="1" colspan="1" style="text-align:center;vertical-align:middle;">3.56+/&#x02212;0.09</td></tr><tr><td headers="hd_h_ml075.t2_1_1_1_1" rowspan="1" colspan="1" style="text-align:center;vertical-align:middle;"><a href="https://pubchem.ncbi.nlm.nih.gov/bioassay/2142" ref="pagearea=body&amp;targetsite=entrez&amp;targetcat=link&amp;targettype=pubchem">2142</a></td><td headers="hd_h_ml075.t2_1_1_1_2" rowspan="1" colspan="1" style="text-align:left;vertical-align:middle;">The purpose of this assay is to
determine whether probe candidates were cytotoxic and brain
penetrant.</td><td headers="hd_h_ml075.t2_1_1_1_3" rowspan="1" colspan="1" style="text-align:left;vertical-align:middle;">The purpose of this assay is to
determine whether compounds of interest reduce cell
viability. Y2R HEK293-CNG cells were seeded at 500 cells per
well in 1536-well plates in 5 uL growth media. Compounds (in
DMSO) were prepared as 10-point, 1:3 serial dilutions
starting at 11 &#x000b5;M final concentration were added to cells.
Plates were incubated for 24, 48 or 72 h at 37 C. After
incubation, 5 uL of CellTiter-Glo (Promega, Madison, WI)
were added to each well and the plates were allowed to
incubate for 15 min at room temperature. Luminescence was
then measured (ViewLux plate reader, PerkinElmer, Turku,
Finland). Viability was measured as a percentage relative to
control cells treated with DMSO alone (0%
cytotoxicity) and cells treated with 100 &#x000b5;M Doxorubicin
(100% cytotoxicity).<br /><br />Plasma and
brain levels of the compounds were assessed in C57Bl6 mice
30 minutes after dosing 10 mg/kg intraperitoneally. Samples
were formulated at 2 mg/mL in 10/10/80 DMSO/tween/water.
Blood was collected into EDTA containing tubes at 30 min and
plasma was generated using standard centrifugation
techniques. Brain samples were frozen upon collection and
all samples were stored at &#x02212;80 C until analyzed.
Brain tissue was not perfused prior to freezing to prevent
diffusion of the compound out of the tissue during the
process. Plasma samples were analyzed by treating 25
&#x003bc;L of plasma with 125 &#x003bc;L of
acetonitrile containing an internal standard (propanolol)
and filtering through a Millipore Multiscreen Solvinter 0.45
&#x003bc;m low binding PTFE hydrophilic filter. The
filtrate was analyzed by LC- MS/MS using an API Sciex 4000.
MRM methods were developed in positive ion mode and
concentrations were determined using a standard curve
between 2 to 2000 ng/mL. Samples with concentrations outside
of the curve were diluted with blank plasma and reanalyzed.
Similar conditions were used to determine brain levels
except the samples were weighed and acetonitrile was added
(10x, weight by volume). The samples were sonicated to
extract the compound from the brain matrix and then filtered
as described above. A density of 1 g/mL was used to convert
compound per mg tissue into molar equivalents.</td><td headers="hd_h_ml075.t2_1_1_1_4" rowspan="1" colspan="1" style="text-align:center;vertical-align:middle;"></td><td headers="hd_h_ml075.t2_1_1_1_5" rowspan="1" colspan="1" style="text-align:center;vertical-align:middle;"></td></tr></tbody></table></div></div><div id="ml075.t3" class="table"><h3><span class="label">Table 4</span><span class="title">Reagents and Source</span></h3><p class="large-table-link" style="display:none"><span class="right"><a href="/books/NBK47354/table/ml075.t3/?report=objectonly" target="object">View in own window</a></span></p><div class="large_tbl" id="__ml075.t3_lrgtbl__"><table class="no_top_margin"><thead><tr><th id="hd_h_ml075.t3_1_1_1_1" rowspan="1" colspan="1" style="text-align:center;vertical-align:middle;">AID</th><th id="hd_h_ml075.t3_1_1_1_2" rowspan="1" colspan="1" style="text-align:center;vertical-align:middle;">Reagent (Source)</th></tr></thead><tbody><tr><td headers="hd_h_ml075.t3_1_1_1_1" rowspan="1" colspan="1" style="text-align:center;vertical-align:middle;">
<b><a href="https://pubchem.ncbi.nlm.nih.gov/bioassay/793" ref="pagearea=body&amp;targetsite=entrez&amp;targetcat=link&amp;targettype=pubchem">793</a>, <a href="https://pubchem.ncbi.nlm.nih.gov/bioassay/1256" ref="pagearea=body&amp;targetsite=entrez&amp;targetcat=link&amp;targettype=pubchem">1256</a>, <a href="https://pubchem.ncbi.nlm.nih.gov/bioassay/1257" ref="pagearea=body&amp;targetsite=entrez&amp;targetcat=link&amp;targettype=pubchem">1257</a>, and <a href="https://pubchem.ncbi.nlm.nih.gov/bioassay/1272" ref="pagearea=body&amp;targetsite=entrez&amp;targetcat=link&amp;targettype=pubchem">1272</a></b>
</td><td headers="hd_h_ml075.t3_1_1_1_2" rowspan="1" colspan="1" style="text-align:left;vertical-align:middle;">Neuropeptide Y receptor Y2
HEK293-CNG cells (BD Biosciences, part 344870)<br /> 10x
ACTOne Membrane Potential Assay Kit (BD Biosciences, part
<a href="/nuccore/92255785" class="bk_tag" ref="pagearea=body&amp;targetsite=entrez&amp;targetcat=link&amp;targettype=nuccore">BD354663</a>)<br /> Phosphate Buffered Saline (Invitrogen,
part 10010-023)<br /> DMEM (Invitrogen, part
11965-092)<br /> Fetal Bovine Serum (Invitrogen, part
16140-071)<br /> Trypsin-EDTA solution (Invitrogen, part
25200-056)<br /> Geneticin (Invitrogen, part
10131-027)<br /> Puromycin (Sigma, part P9620)<br />
Isoproterenol (Sigma, part I6504)<br /> Ro 20-1724 (Sigma,
part B8279)<br /> Neuropeptide Y (American Peptide, part
60-1-11B)<br /> BIIE 0246 (Tocris, part 1700)<br />
1536-well plates (Greiner, part 789072)<br /> T-175 tissue
culture flasks (Corning, part 431)</td></tr><tr><td headers="hd_h_ml075.t3_1_1_1_1" rowspan="1" colspan="1" style="text-align:center;vertical-align:middle;">
<b><a href="https://pubchem.ncbi.nlm.nih.gov/bioassay/1040" ref="pagearea=body&amp;targetsite=entrez&amp;targetcat=link&amp;targettype=pubchem">1040</a> and <a href="https://pubchem.ncbi.nlm.nih.gov/bioassay/1279" ref="pagearea=body&amp;targetsite=entrez&amp;targetcat=link&amp;targettype=pubchem">1279</a></b>
</td><td headers="hd_h_ml075.t3_1_1_1_2" rowspan="1" colspan="1" style="text-align:left;vertical-align:middle;">As above, with the
following changes: Neuropeptide Y receptor
Y1 HEK293-CNG cells (BD Biosciences, part 344869) (replaces
Y2 cells)</td></tr><tr><td headers="hd_h_ml075.t3_1_1_1_1" rowspan="1" colspan="1" style="text-align:center;vertical-align:middle;"><a href="https://pubchem.ncbi.nlm.nih.gov/bioassay/2142" ref="pagearea=body&amp;targetsite=entrez&amp;targetcat=link&amp;targettype=pubchem">2142</a></td><td headers="hd_h_ml075.t3_1_1_1_2" rowspan="1" colspan="1" style="text-align:left;vertical-align:middle;">Y2R HEK293-CNG cells ;
CellTiter-Glo (Promega, Madison, WI); DMSO; Doxorubicin
DMSO/tween/water; EDTA; acetonitrile containing an internal
standard (propanolol)</td></tr></tbody></table></div></div></div><div id="ml075.s7"><h4>iii. Summary of Results</h4><p>Compared to previously described Y2R antagonists, the compounds described
herein offer greater promise for elucidating the Y2R signaling pathway.</p></div></div><div id="ml075.s8"><h3>b. Probe Optimization</h3></div><div id="ml075.s9"><h3>i. Description of SAR &#x00026; chemistry strategy (including structure and
data) that led to the probe.</h3><p>Since receptor subtype selective antagonists were desired, compounds worth
follow-up from the Primary, Confirmation and Counterscreening were required to
exhibit an IC<sub>50</sub> value of less than 10 &#x003bc;M at Y2R and
greater than 35 &#x003bc;M at Y1 in dose response assays. Structures and
data for each probe can be found in the SAR tables. The chemistry strategy that
lead to each scaffold is described below:</p><p><b>Scaffold 1:</b> Based on the above criteria, one compound belonging
to the piperidine-carbothioamide scaffold was identified:
<b><a href="https://pubchem.ncbi.nlm.nih.gov/substance/17507305" ref="pagearea=body&amp;targetsite=entrez&amp;targetcat=link&amp;targettype=pubchem">SID-17507305</a></b>. This compound does not share structural
similarities with the known NPY-Y2 antagonist BIIE 0246 or JNJ-5207787.
Analogs were purchased in powder form or reordered from the MLSMR in liquid
form and tested in dose response assays against both receptors. Results for
these analogs are summarized in the SAR table below.</p><p><b>Scaffold 2:</b> Based on the above criteria, a compound belonging to
the arysulfamoyl benzamide scaffold was identified:
<b><a href="https://pubchem.ncbi.nlm.nih.gov/substance/17413392" ref="pagearea=body&amp;targetsite=entrez&amp;targetcat=link&amp;targettype=pubchem">SID-17413392</a></b>. This compound does not share structural
similarities with the known NPY-Y2 antagonist BIIE0246 or JNJ-5207787.
Analogs were purchased in powder form or re-ordered from the MLSMR in liquid
form and tested in dose response assays against both receptors. Results for
these analogs are summarized in the SAR table below.</p><p><b>Scaffold 3:</b> Based on the above criteria, a compound belonging to
the aryl-1,2,4-oxadiazole scaffold was identified: <b><a href="https://pubchem.ncbi.nlm.nih.gov/substance/4242079" ref="pagearea=body&amp;targetsite=entrez&amp;targetcat=link&amp;targettype=pubchem">SID-4242079</a></b>.
This compound does not share structural similarities with the known NPY-Y2
antagonist BIIE0246 or JNJ-5207787. Analogs were purchased in powder form or
re-ordered from the MLSMR in liquid form and tested in dose response assays
against both receptors. Results for these analogs are summarized in the SAR
table below.</p><p><b>Scaffold 4:</b> Based on the above criteria, a compound belonging to
the dimethylisoxazole scaffold was identified: <b><a href="https://pubchem.ncbi.nlm.nih.gov/substance/22413249" ref="pagearea=body&amp;targetsite=entrez&amp;targetcat=link&amp;targettype=pubchem">SID-22413249</a></b>.
This compound does not share structural similarities with the known NPY-Y2
antagonist BIIE0246 or JNJ-5207787. Analogs were purchased in powder form or
re-ordered from the MLSMR in liquid form and tested in dose response assays
against both receptors. Results for these analogs are summarized in the SAR
table below.</p></div></div><div id="ml075.s10"><h2 id="_ml075_s10_">3. Probe</h2><div id="ml075.s11"><h3>a. Chemical name</h3><p><b>Scaffold 1:</b>
N-(4-ethoxyphenyl)-4-[hydroxy(diphenyl)methyl]piperidine-1-
carbothioamide [<a href="/pcsubstance/?term=ML075[synonym]" ref="pagearea=body&amp;targetsite=entrez&amp;targetcat=term&amp;targettype=pubchem">ML075</a>]</p><p><b>Scaffold 2:</b>
4-chloro-3-[(2,5-dimethylphenyl)sulfamoyl]-N-(2-phenylphenyl)benzamide
[<a href="/pcsubstance/?term=ML074[synonym]" ref="pagearea=body&amp;targetsite=entrez&amp;targetcat=term&amp;targettype=pubchem">ML074</a>]</p><p><b>Scaffold 3:</b>
2-(2-methoxyphenyl)-N-[4-[5-(3-methoxyphenyl)-1,2,
4-oxadiazol-3-yl]phenyl]acetamide
[<a href="/pcsubstance/?term=ML073[synonym]" ref="pagearea=body&amp;targetsite=entrez&amp;targetcat=term&amp;targettype=pubchem">ML073</a>]</p><p><b>Scaffold 4:</b>
3,5-dimethyl-4-[(4-methylphenyl)sulfonyl-phenylmethyl]-1,2-oxazole
[<a href="/pcsubstance/?term=ML072[synonym]" ref="pagearea=body&amp;targetsite=entrez&amp;targetcat=term&amp;targettype=pubchem">ML072</a>]</p></div><div id="ml075.s12"><h3>b. Probe chemical structure</h3><div id="ml075.fu6" class="figure bk_fig"><div class="graphic"><img src="/books/NBK47354/bin/ml075fu1.jpg" alt="Scaffold 1 (Piperidine carbothioamide) [ML075]." /></div><h3><span class="title">Scaffold 1 (Piperidine carbothioamide) [ML075]</span></h3></div><div id="ml075.fu7" class="figure bk_fig"><div class="graphic"><img src="/books/NBK47354/bin/ml075fu2.jpg" alt="Scaffold 2 (Arysulfamoyl benzamide) [ML074]." /></div><h3><span class="title">Scaffold 2 (Arysulfamoyl benzamide) [ML074]</span></h3></div><div id="ml075.fu8" class="figure bk_fig"><div class="graphic"><img src="/books/NBK47354/bin/ml075fu3.jpg" alt="Scaffold 3 (Aryl-1,2,4-oxadiazole) [ML073]." /></div><h3><span class="title">Scaffold 3 (Aryl-1,2,4-oxadiazole) [ML073]</span></h3></div><div id="ml075.fu9" class="figure bk_fig"><div class="graphic"><img src="/books/NBK47354/bin/ml075fu4.jpg" alt="Scaffold 4 (Dimethylisoxazole) [ML072]." /></div><h3><span class="title">Scaffold 4 (Dimethylisoxazole) [ML072]</span></h3></div></div><div id="ml075.s13"><h3>c. Structural Verification Information of probe SID</h3><p>LCMS</p></div><div id="ml075.s14"><h3>d. PubChem CID (corresponding to the SID)</h3><p><b>Scaffold 1:</b> CID-2936384</p><p><b>Scaffold 2:</b> CID-2228302</p><p><b>Scaffold 3:</b> CID-3236979</p><p><b>Scaffold 4:</b> CID-4460128</p></div><div id="ml075.s15"><h3>e. Availabilty from vendor</h3><p><b>Scaffold 1:</b> Asinex, catalog number BAS 01915526</p><p><b>Scaffold 2:</b> ChemBridge, catalog number 7955494</p><p><b>Scaffold 3:</b> ChemDiv, catalog number K907-0250</p><p><b>Scaffold 4:</b> Specs, catalog number AM970/41069539</p></div><div id="ml075.s16"><h3>f. Mode of action for biological activity of probe</h3><p><b>Scaffold 1:</b> Using cell-based <sup>125</sup>I-PYY binding assays, the
Assay Provider has determined that <b><a href="https://pubchem.ncbi.nlm.nih.gov/substance/17507305" ref="pagearea=body&amp;targetsite=entrez&amp;targetcat=link&amp;targettype=pubchem">SID-17507305</a></b> competes with
agonist for binding to the NPY Y2 receptor. In cells expressing NPY Y2, this
compound exhibited a K<sub>i</sub> value of 1.55 nM (<a class="bk_pop" href="#ml075.r1">1</a>). No significant blockade of <sup>125</sup>I-PYY
binding in cells expressing NPY Y1 was detected, even at concentrations up to 50
&#x003bc;M. These results suggest that this probe binds to the NPY Y2
receptor and does not bind to the Y1 receptor subtype.</p><p><b>Scaffold 2:</b> Using cell-based <sup>125</sup>I-PYY binding assays, the
Assay Provider has determined that <b><a href="https://pubchem.ncbi.nlm.nih.gov/substance/17413392" ref="pagearea=body&amp;targetsite=entrez&amp;targetcat=link&amp;targettype=pubchem">SID-17413392</a></b> competes with
agonist for binding to the NPY Y2 receptor. In cells expressing NPY Y2, this
compound exhibited a K<sub>i</sub> value of 1.93 nM (<a class="bk_pop" href="#ml075.r1">1</a>). No significant blockade of <sup>125</sup>I-PYY
binding in cells expressing NPY Y1 was detected, even at concentrations up to 50
&#x003bc;M. These results suggest that this probe binds to the NPY Y2
receptor and does not bind to the Y1 receptor subtype.</p><p><b>Scaffold 3:</b> Using cell-based <sup>125</sup>I-PYY binding assays, the
Assay Provider has determined that <b><a href="https://pubchem.ncbi.nlm.nih.gov/substance/4242079" ref="pagearea=body&amp;targetsite=entrez&amp;targetcat=link&amp;targettype=pubchem">SID-4242079</a></b> competes with agonist
for binding to the NPY Y2 receptor. In cells expressing NPY Y2, this compound
exhibited a K<sub>i</sub> value of 6.0 nM (<a class="bk_pop" href="#ml075.r1">1</a>). No significant blockade of <sup>125</sup>I-PYY binding in cells
expressing NPY Y1 was detected, even at concentrations up to 50 &#x003bc;M.
These results suggest that this probe binds to the NPY Y2 receptor and does not
bind to the Y1 receptor subtype.</p><p><b>Scaffold 4:</b> Using cell-based <sup>125</sup>I-PYY binding assays, the
Assay Provider has determined that <b><a href="https://pubchem.ncbi.nlm.nih.gov/substance/22413249" ref="pagearea=body&amp;targetsite=entrez&amp;targetcat=link&amp;targettype=pubchem">SID-22413249</a></b> competes with
agonist for binding to the NPY Y2 receptor. In cells expressing NPY Y2, this
compound exhibited a K<sub>i</sub> value of 60.3 nM (<a class="bk_pop" href="#ml075.r1">1</a>). No significant blockade of <sup>125</sup>I-PYY
binding in cells expressing NPY Y1 was detected, even at concentrations up to 50
&#x003bc;M. These results suggest that this probe binds to the NPY Y2
receptor and does not bind to the Y1 receptor subtype.</p></div><div id="ml075.s17"><h3>g. Detailed synthetic pathway for making probe</h3><p>Not applicable</p></div><div id="ml075.s18"><h3>h. Probe properties</h3><p><b>Scaffold 1:</b> Aqueous solubility, &#x02212;8.47; ADMET BBB, 0.803;
ADMET BBB level, 0; ADMET absorption level, 0; ADMET solubility,
&#x02212;5.463; ADMET solubility level, 2</p><p><b>Scaffold 2:</b> Aqueous solubility, &#x02212;9.18; ADMET BBB, ND;
ADMET BBB level, 4; ADMET absorption level, 2; ADMET solubility,
&#x02212;7.195; ADMET solubility level, 1</p><p><b>Scaffold 3:</b> Aqueous solubility, &#x02212;6.86; ADMET BBB,
&#x02212;.253; ADMET BBB level, 2; ADMET absorption level, 0; ADMET
solubility, &#x02212;4.849; ADMET solubility level, 2</p><p><b>Scaffold 4:</b> Aqueous solubility, &#x02212;6.11; ADMET BBB, .133;
ADMET BBB level, 1; ADMET absorption level, 0; ADMET solubility,
&#x02212;5.237; ADMET solubility level, 2</p></div><div id="ml075.s19"><h3>i. A tabular presentation summarizing known probe properties</h3><p>Please see Tables of <a class="figpopup" href="/books/NBK47354/table/ml075.t4/?report=objectonly" target="object" rid-figpopup="figml075t4" rid-ob="figobml075t4">Probe
Properties</a> and <a class="figpopup" href="/books/NBK47354/table/ml075.t5/?report=objectonly" target="object" rid-figpopup="figml075t5" rid-ob="figobml075t5">Probe Names</a>.</p><div class="iconblock whole_rhythm clearfix ten_col table-wrap" id="figml075t4"><a href="/books/NBK47354/table/ml075.t4/?report=objectonly" target="object" title="Table 5" class="img_link icnblk_img figpopup" rid-figpopup="figml075t4" rid-ob="figobml075t4"><img class="small-thumb" src="/books/NBK47354/table/ml075.t4/?report=thumb" src-large="/books/NBK47354/table/ml075.t4/?report=previmg" alt="Table 5. Probe Properties." /></a><div class="icnblk_cntnt"><h4 id="ml075.t4"><a href="/books/NBK47354/table/ml075.t4/?report=objectonly" target="object" rid-ob="figobml075t4">Table 5</a></h4><p class="float-caption no_bottom_margin">Probe Properties. </p></div></div><div class="iconblock whole_rhythm clearfix ten_col table-wrap" id="figml075t5"><a href="/books/NBK47354/table/ml075.t5/?report=objectonly" target="object" title="Table 6" class="img_link icnblk_img figpopup" rid-figpopup="figml075t5" rid-ob="figobml075t5"><img class="small-thumb" src="/books/NBK47354/table/ml075.t5/?report=thumb" src-large="/books/NBK47354/table/ml075.t5/?report=previmg" alt="Table 6. Probe Names." /></a><div class="icnblk_cntnt"><h4 id="ml075.t5"><a href="/books/NBK47354/table/ml075.t5/?report=objectonly" target="object" rid-ob="figobml075t5">Table 6</a></h4><p class="float-caption no_bottom_margin">Probe Names. </p></div></div></div></div><div id="ml075.s20"><h2 id="_ml075_s20_">4. Appendices</h2><ol class="lower-alpha"><li class="half_rhythm"><div>
<b>Comparative data on (<a class="bk_pop" href="#ml075.r1">1</a>)
probes, (<a class="bk_pop" href="#ml075.r2">2</a>) similar compound
structures (establishing SAR) and (<a class="bk_pop" href="#ml075.r3">3</a>) prior probes</b>
</div></li><li class="half_rhythm"><div>
<b>Comparative data showing probe specificity for target</b>
</div></li></ol><p>See Tables <a class="figpopup" href="/books/NBK47354/table/ml075.t6/?report=objectonly" target="object" rid-figpopup="figml075t6" rid-ob="figobml075t6">7a</a>-<a class="figpopup" href="/books/NBK47354/table/ml075.t9/?report=objectonly" target="object" rid-figpopup="figml075t9" rid-ob="figobml075t9">d</a></p><div class="iconblock whole_rhythm clearfix ten_col table-wrap" id="figml075t6"><a href="/books/NBK47354/table/ml075.t6/?report=objectonly" target="object" title="Table 7(a)" class="img_link icnblk_img figpopup" rid-figpopup="figml075t6" rid-ob="figobml075t6"><img class="small-thumb" src="/books/NBK47354/table/ml075.t6/?report=thumb" src-large="/books/NBK47354/table/ml075.t6/?report=previmg" alt="Table 7(a). SAR Scaffold 1: Piperidine-carbothioamide." /></a><div class="icnblk_cntnt"><h4 id="ml075.t6"><a href="/books/NBK47354/table/ml075.t6/?report=objectonly" target="object" rid-ob="figobml075t6">Table 7(a)</a></h4><p class="float-caption no_bottom_margin">SAR Scaffold 1: Piperidine-carbothioamide. </p></div></div><div class="iconblock whole_rhythm clearfix ten_col table-wrap" id="figml075t7"><a href="/books/NBK47354/table/ml075.t7/?report=objectonly" target="object" title="Table 7(b)" class="img_link icnblk_img figpopup" rid-figpopup="figml075t7" rid-ob="figobml075t7"><img class="small-thumb" src="/books/NBK47354/table/ml075.t7/?report=thumb" src-large="/books/NBK47354/table/ml075.t7/?report=previmg" alt="Table 7(b). SAR Scaffold 2: Arylsulfamoylbenzamide." /></a><div class="icnblk_cntnt"><h4 id="ml075.t7"><a href="/books/NBK47354/table/ml075.t7/?report=objectonly" target="object" rid-ob="figobml075t7">Table 7(b)</a></h4><p class="float-caption no_bottom_margin">SAR Scaffold 2: Arylsulfamoylbenzamide. </p></div></div><div class="iconblock whole_rhythm clearfix ten_col table-wrap" id="figml075t8"><a href="/books/NBK47354/table/ml075.t8/?report=objectonly" target="object" title="Table 7(c)" class="img_link icnblk_img figpopup" rid-figpopup="figml075t8" rid-ob="figobml075t8"><img class="small-thumb" src="/books/NBK47354/table/ml075.t8/?report=thumb" src-large="/books/NBK47354/table/ml075.t8/?report=previmg" alt="Table 7(c). SAR Scaffold 3: Aryl-1,2,4-oxadiazole." /></a><div class="icnblk_cntnt"><h4 id="ml075.t8"><a href="/books/NBK47354/table/ml075.t8/?report=objectonly" target="object" rid-ob="figobml075t8">Table 7(c)</a></h4><p class="float-caption no_bottom_margin">SAR Scaffold 3: Aryl-1,2,4-oxadiazole. </p></div></div><div class="iconblock whole_rhythm clearfix ten_col table-wrap" id="figml075t9"><a href="/books/NBK47354/table/ml075.t9/?report=objectonly" target="object" title="Table 7(d)" class="img_link icnblk_img figpopup" rid-figpopup="figml075t9" rid-ob="figobml075t9"><img class="small-thumb" src="/books/NBK47354/table/ml075.t9/?report=thumb" src-large="/books/NBK47354/table/ml075.t9/?report=previmg" alt="Table 7(d). SAR Scaffold 4: Dimethylisoxazole." /></a><div class="icnblk_cntnt"><h4 id="ml075.t9"><a href="/books/NBK47354/table/ml075.t9/?report=objectonly" target="object" rid-ob="figobml075t9">Table 7(d)</a></h4><p class="float-caption no_bottom_margin">SAR Scaffold 4: Dimethylisoxazole. </p></div></div></div><div id="ml075.bib"><h2 id="_ml075_bib_">5. Bibliography</h2><dl class="temp-labeled-list"><dt>1.</dt><dd><div class="bk_ref" id="ml075.r1">Saldanha SA, Brothers SP, Spicer T, Cameron M, Mercer BA, Chase P, McDonald P, Wahlestedt C, Hodder PS. Selective and Brain Penetrant Neuropeptide Y Y2 Receptor
Antagonists Discovered through Whole-Cell High Throughput
Screening. <span></span> Submitted. [<a href="/pmc/articles/PMC2802430/" ref="pagearea=cite-ref&amp;targetsite=entrez&amp;targetcat=link&amp;targettype=pmc">PMC free article<span class="bk_prnt">: PMC2802430</span></a>] [<a href="https://pubmed.ncbi.nlm.nih.gov/19837904" ref="pagearea=cite-ref&amp;targetsite=entrez&amp;targetcat=link&amp;targettype=pubmed">PubMed<span class="bk_prnt">: 19837904</span></a>]</div></dd><dt>2.</dt><dd><div class="bk_ref" id="ml075.r2">Bonaventure P, Nepomuceno D, Mazur C, Lord B, Rudolph DA, Jablonowski JA, Carruthers NI, Lovenberg TW. Characterization of
N-(1-Acetyl-2,3-dihydro-1H-indol-6-yl)-3-(3-cyanophenyl)-N-[1-(2-cyclopentyl-ethyl)-piperidin-4yl]acrylamide
(JNJ-5207787), a small molecule antagonist of the neuropeptide Y Y 2
receptor. <span><span class="ref-journal">J Pharmacol Exp Ther. </span>2004 Mar;<span class="ref-vol">308</span>(3:):11307.</span> [<a href="https://pubmed.ncbi.nlm.nih.gov/14617685" ref="pagearea=cite-ref&amp;targetsite=entrez&amp;targetcat=link&amp;targettype=pubmed">PubMed<span class="bk_prnt">: 14617685</span></a>]</div></dd><dt>3.</dt><dd><div class="bk_ref" id="ml075.r3">Tetko IV, Tanchuk VY, Kasheva TN, Villa AE. Estimation of aqueous solubility of chemical compounds using
E-state indices. <span><span class="ref-journal">J Chem Inf Comput Sci. </span>2001;<span class="ref-vol">41</span>:14881493.</span> [<a href="https://pubmed.ncbi.nlm.nih.gov/11749573" ref="pagearea=cite-ref&amp;targetsite=entrez&amp;targetcat=link&amp;targettype=pubmed">PubMed<span class="bk_prnt">: 11749573</span></a>]</div></dd><dt>4.</dt><dd><div class="bk_ref" id="ml075.r4">Egan WJ, Merz KM Jr, Baldwin JJ. Prediction of drug absorption using multivariate
statistics. <span><span class="ref-journal">J Med Chem. </span>2000;<span class="ref-vol">43</span>:38673877.</span> [<a href="https://pubmed.ncbi.nlm.nih.gov/11052792" ref="pagearea=cite-ref&amp;targetsite=entrez&amp;targetcat=link&amp;targettype=pubmed">PubMed<span class="bk_prnt">: 11052792</span></a>]</div></dd><dt>5.</dt><dd><div class="bk_ref" id="ml075.r5">Egan WJ, Lauri G. Prediction of intestinal permeability. <span><span class="ref-journal">Adv Drug Deliv Rev. </span>2002;<span class="ref-vol">54</span>:273289.</span> [<a href="https://pubmed.ncbi.nlm.nih.gov/11922948" ref="pagearea=cite-ref&amp;targetsite=entrez&amp;targetcat=link&amp;targettype=pubmed">PubMed<span class="bk_prnt">: 11922948</span></a>]</div></dd><dt>6.</dt><dd><div class="bk_ref" id="ml075.r6">Cheng A, Merz KM Jr. Prediction of aqueous solubility of a diverse set of
compounds using quantitative structure-property
relationships. <span><span class="ref-journal">J Med Chem. </span>2003;<span class="ref-vol">46</span>:35723580.</span> [<a href="https://pubmed.ncbi.nlm.nih.gov/12904062" ref="pagearea=cite-ref&amp;targetsite=entrez&amp;targetcat=link&amp;targettype=pubmed">PubMed<span class="bk_prnt">: 12904062</span></a>]</div></dd></dl></div><div id="ml075.s21"><h2 id="_ml075_s21_">Brain Penetrance Data</h2><p>In order to determine whether the identified Y2R antagonists were brain-penetrant,
selected compounds were injected intraperitoneally into adult mice at 10 mg/kg and
levels in the brain tissue and plasma were measured after thirty minutes. BIIE 0246,
the current NPY Y2 antagonist probe, exhibited poor penetration (only 2%
of plasma levels). All probes demonstrated a higher brain penetrance than BIIE
0246.</p><div id="ml075.tu2" class="table"><p class="large-table-link" style="display:none"><span class="right"><a href="/books/NBK47354/table/ml075.tu2/?report=objectonly" target="object">View in own window</a></span></p><div class="large_tbl" id="__ml075.tu2_lrgtbl__"><table><thead><tr><th id="hd_h_ml075.tu2_1_1_1_1" rowspan="2" colspan="1" headers="hd_h_ml075.tu2_1_1_1_1" style="text-align:center;vertical-align:middle;">ID</th><th id="hd_h_ml075.tu2_1_1_1_2" colspan="3" rowspan="1" style="text-align:center;vertical-align:middle;">Brain Penetration
Studies<span class="hr"></span></th></tr><tr><th headers="hd_h_ml075.tu2_1_1_1_2" id="hd_h_ml075.tu2_1_1_2_1" rowspan="1" colspan="1" style="text-align:center;vertical-align:middle;">Plasma Concentration
(&#x003bc;M)</th><th headers="hd_h_ml075.tu2_1_1_1_2" id="hd_h_ml075.tu2_1_1_2_2" rowspan="1" colspan="1" style="text-align:center;vertical-align:middle;">Brain Concentration
(&#x003bc;M)</th><th headers="hd_h_ml075.tu2_1_1_1_2" id="hd_h_ml075.tu2_1_1_2_3" rowspan="1" colspan="1" style="text-align:center;vertical-align:middle;">Ratio
[B]/[P]
(%)</th></tr></thead><tbody><tr><td headers="hd_h_ml075.tu2_1_1_1_1" rowspan="1" colspan="1" style="text-align:center;vertical-align:top;">
<b><a href="https://pubchem.ncbi.nlm.nih.gov/substance/17507305" ref="pagearea=body&amp;targetsite=entrez&amp;targetcat=link&amp;targettype=pubchem">SID-17507305</a></b>
</td><td headers="hd_h_ml075.tu2_1_1_1_2 hd_h_ml075.tu2_1_1_2_1" rowspan="1" colspan="1" style="text-align:center;vertical-align:top;">8.5 &#x000b1; 3.3</td><td headers="hd_h_ml075.tu2_1_1_1_2 hd_h_ml075.tu2_1_1_2_2" rowspan="1" colspan="1" style="text-align:center;vertical-align:top;">3.7 &#x000b1; 1.7</td><td headers="hd_h_ml075.tu2_1_1_1_2 hd_h_ml075.tu2_1_1_2_3" rowspan="1" colspan="1" style="text-align:center;vertical-align:top;">44</td></tr><tr><td headers="hd_h_ml075.tu2_1_1_1_1" rowspan="1" colspan="1" style="text-align:center;vertical-align:top;">
<b><a href="https://pubchem.ncbi.nlm.nih.gov/substance/17413392" ref="pagearea=body&amp;targetsite=entrez&amp;targetcat=link&amp;targettype=pubchem">SID-17413392</a></b>
</td><td headers="hd_h_ml075.tu2_1_1_1_2 hd_h_ml075.tu2_1_1_2_1" rowspan="1" colspan="1" style="text-align:center;vertical-align:top;">1.1 &#x000b1; 0.1</td><td headers="hd_h_ml075.tu2_1_1_1_2 hd_h_ml075.tu2_1_1_2_2" rowspan="1" colspan="1" style="text-align:center;vertical-align:top;">0.4 &#x000b1; 0.03</td><td headers="hd_h_ml075.tu2_1_1_1_2 hd_h_ml075.tu2_1_1_2_3" rowspan="1" colspan="1" style="text-align:center;vertical-align:top;">36</td></tr><tr><td headers="hd_h_ml075.tu2_1_1_1_1" rowspan="1" colspan="1" style="text-align:center;vertical-align:top;">
<b><a href="https://pubchem.ncbi.nlm.nih.gov/substance/17413034" ref="pagearea=body&amp;targetsite=entrez&amp;targetcat=link&amp;targettype=pubchem">SID-17413034</a></b>
</td><td headers="hd_h_ml075.tu2_1_1_1_2 hd_h_ml075.tu2_1_1_2_1" rowspan="1" colspan="1" style="text-align:center;vertical-align:top;">1.6 &#x000b1; 0.6</td><td headers="hd_h_ml075.tu2_1_1_1_2 hd_h_ml075.tu2_1_1_2_2" rowspan="1" colspan="1" style="text-align:center;vertical-align:top;">1.7 &#x000b1; 0.6</td><td headers="hd_h_ml075.tu2_1_1_1_2 hd_h_ml075.tu2_1_1_2_3" rowspan="1" colspan="1" style="text-align:center;vertical-align:top;">106</td></tr><tr><td headers="hd_h_ml075.tu2_1_1_1_1" rowspan="1" colspan="1" style="text-align:center;vertical-align:top;">
<b><a href="https://pubchem.ncbi.nlm.nih.gov/substance/4242079" ref="pagearea=body&amp;targetsite=entrez&amp;targetcat=link&amp;targettype=pubchem">SID-4242079</a></b>
</td><td headers="hd_h_ml075.tu2_1_1_1_2 hd_h_ml075.tu2_1_1_2_1" rowspan="1" colspan="1" style="text-align:center;vertical-align:top;">9.0 &#x000b1; 0.7</td><td headers="hd_h_ml075.tu2_1_1_1_2 hd_h_ml075.tu2_1_1_2_2" rowspan="1" colspan="1" style="text-align:center;vertical-align:top;">4.5 &#x000b1; 0.3</td><td headers="hd_h_ml075.tu2_1_1_1_2 hd_h_ml075.tu2_1_1_2_3" rowspan="1" colspan="1" style="text-align:center;vertical-align:top;">50</td></tr><tr><td headers="hd_h_ml075.tu2_1_1_1_1" rowspan="1" colspan="1" style="text-align:center;vertical-align:top;">
<b><a href="https://pubchem.ncbi.nlm.nih.gov/substance/22413249" ref="pagearea=body&amp;targetsite=entrez&amp;targetcat=link&amp;targettype=pubchem">SID-22413249</a></b>
</td><td headers="hd_h_ml075.tu2_1_1_1_2 hd_h_ml075.tu2_1_1_2_1" rowspan="1" colspan="1" style="text-align:center;vertical-align:top;">1.3 &#x000b1; 0.3</td><td headers="hd_h_ml075.tu2_1_1_1_2 hd_h_ml075.tu2_1_1_2_2" rowspan="1" colspan="1" style="text-align:center;vertical-align:top;">1.5 &#x000b1; 0.2</td><td headers="hd_h_ml075.tu2_1_1_1_2 hd_h_ml075.tu2_1_1_2_3" rowspan="1" colspan="1" style="text-align:center;vertical-align:top;">115</td></tr><tr><td headers="hd_h_ml075.tu2_1_1_1_1" rowspan="1" colspan="1" style="text-align:center;vertical-align:top;">
<b>BIIE-0246</b>
</td><td headers="hd_h_ml075.tu2_1_1_1_2 hd_h_ml075.tu2_1_1_2_1" rowspan="1" colspan="1" style="text-align:center;vertical-align:top;">12 &#x000b1; 2</td><td headers="hd_h_ml075.tu2_1_1_1_2 hd_h_ml075.tu2_1_1_2_2" rowspan="1" colspan="1" style="text-align:center;vertical-align:top;">0.2 &#x000b1; 0.1</td><td headers="hd_h_ml075.tu2_1_1_1_2 hd_h_ml075.tu2_1_1_2_3" rowspan="1" colspan="1" style="text-align:center;vertical-align:top;">2</td></tr></tbody></table></div></div></div><div id="bk_toc_contnr"></div></div></div>
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Probe Report for NPY-Y2 Receptor Antagonists. 2009 Jan 13 [Updated 2010 Aug 6]. In: Probe Reports from the NIH Molecular Libraries Program [Internet]. 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