Non-peptide calcitonin gene-related peptide receptor antagonists from a benzodiazepinone lead
作者:Theresa M. Williams、Craig A. Stump、Diem N. Nguyen、Amy G. Quigley、Ian M. Bell、Steven N. Gallicchio、C. Blair Zartman、Bang-Lin Wan、Kimberly Della Penna、Priya Kunapuli、Stefanie A. Kane、Ken S. Koblan、Scott D. Mosser、Ruth Z. Rutledge、Christopher Salvatore、John F. Fay、Joseph P. Vacca、Samuel L. Graham
DOI:10.1016/j.bmcl.2006.02.051
日期:2006.5
High-throughput screening of the Merck sample collection identified benzodiazepinone tetralin-spirohydantoin 1 as a CGRP receptor antagonist with micromolar activity. Comparing the structure of 1 with those of earlier peptide-based antagonists such as BIBN 4096 BS, a key hydrogen bond donor-acceptor pharmacophore was hypothesized. Subsequent structure activity studies supported this hypothesis and led to benzodiazepinone piperidinyldihydroquinazolinone 7, CGRP receptor K-i=44 nM and IC50=38 nM. Compound 7 was orally bioavailabile in rats and is a lead in the development of orally bioavailable CGRP antagonists for the treatment of migraine. (C) 2006 Elsevier Ltd. All rights reserved.