Tetrahydropyridine-4-carboxamides as novel, potent transient receptor potential vanilloid 1 (TRPV1) antagonists
作者:Brian S. Brown、Ryan Keddy、Guo Zhu Zheng、Robert G. Schmidt、John R. Koenig、Heath A. McDonald、Bruce R. Bianchi、Prisca Honore、Michael F. Jarvis、Carol S. Surowy、James S. Polakowski、Kennan C. Marsh、Connie R. Faltynek、Chih-Hung Lee
DOI:10.1016/j.bmc.2008.08.005
日期:2008.9
A series of 1,2,3,6-tetrahydropyridyl-4-carboxamides, exemplified by 6, have been synthesized and evaluated for in vitro TRPV1 antagonist activity, and in vivo analgesic activity in animal pain models. The tetrahydropyridine 6 is a novel TRPV1 receptor antagonist that potently inhibits receptor-mediated Ca2+ influx in vitro induced by several agonists, including capsaicin, N-arachidonoyldopamine (NADA), and low pH. This compound penetrates the CNS and shows potent anti-nociceptive effects in a broad range of animal pain models upon oral dosing due in part to its ability to antagonize both central and peripheral TRPV1 receptors. The SAR leading to the discovery of 6 is presented in this report. (C) 2008 Elsevier Ltd. All rights reserved.