PMID- 21924608 OWN - NLM STAT- MEDLINE DCOM- 20120131 LR - 20131121 IS - 1464-3405 (Electronic) IS - 0960-894X (Linking) VI - 21 IP - 21 DP - 2011 Nov 1 TI - Discovery of spiropiperidine-based potent and selective Orexin-2 receptor antagonists. PG - 6409-13 LID - 10.1016/j.bmcl.2011.08.094 [doi] AB - To generate novel human Orexin-2 Receptor (OX2R) antagonists, a spiropiperidine based scaffold was designed and a SAR study was carried out. Compound 4f possessed the highest OX2R antagonistic activity with an IC(50) value of 3nM with 450-fold selectivity against Orexin-1 Receptor (OX1R). CI - Copyright (c) 2011 Elsevier Ltd. All rights reserved. FAU - Fujimoto, Tatsuhiko AU - Fujimoto T AD - Medicinal Chemistry Research Laboratories,Takeda Pharmaceutical Company, 26-1, Muraokahigashi 2-Chome, Fujisawa, Kanagawa 251-1238, Japan. Fujimoto_Tatsuhiko@takeda.co.jp FAU - Tomata, Yoshihide AU - Tomata Y FAU - Kunitomo, Jun AU - Kunitomo J FAU - Hirozane, Mariko AU - Hirozane M FAU - Marui, Shogo AU - Marui S LA - eng PT - Journal Article DEP - 20110830 PL - England TA - Bioorg Med Chem Lett JT - Bioorganic & medicinal chemistry letters JID - 9107377 RN - 0 (HCRTR2 protein, human) RN - 0 (Ligands) RN - 0 (Orexin Receptors) RN - 0 (Piperidines) RN - 0 (Receptors, G-Protein-Coupled) RN - 0 (Receptors, Neuropeptide) RN - 67I85E138Y (piperidine) SB - IM MH - *Drug Discovery MH - Ligands MH - Orexin Receptors MH - Piperidines/chemistry/*pharmacology MH - Receptors, G-Protein-Coupled/*antagonists & inhibitors MH - Receptors, Neuropeptide/*antagonists & inhibitors EDAT- 2011/09/20 06:00 MHDA- 2012/02/01 06:00 CRDT- 2011/09/20 06:00 PHST- 2011/06/30 00:00 [received] PHST- 2011/08/22 00:00 [revised] PHST- 2011/08/23 00:00 [accepted] PHST- 2011/09/20 06:00 [entrez] PHST- 2011/09/20 06:00 [pubmed] PHST- 2012/02/01 06:00 [medline] AID - S0960-894X(11)01193-0 [pii] AID - 10.1016/j.bmcl.2011.08.094 [doi] PST - ppublish SO - Bioorg Med Chem Lett. 2011 Nov 1;21(21):6409-13. doi: 10.1016/j.bmcl.2011.08.094. Epub 2011 Aug 30.