Optimization of benzimidazole series as opioid receptor-like 1 (ORL1) antagonists: SAR study directed toward improvement of selectivity over hERG activity
作者:Kensuke Kobayashi、Tetsuya Kato、Izumi Yamamoto、Atsushi Shimizu、Sayaka Mizutani、Masanori Asai、Hiroshi Kawamoto、Satoru Ito、Takashi Yoshizumi、Mioko Hirayama、Satoshi Ozaki、Hisashi Ohta、Osamu Okamoto
DOI:10.1016/j.bmcl.2009.04.022
日期:2009.6
A structure-activity relationship (SAR) study on the benzimidazole series of opioid receptor-like 1 (ORL1) antagonists related to 1 is described. Optimization of 1 by introduction of a hydrophilic substituent into the thioether part resulted in identification of potent ORL1 antagonists with high selectivity over binding affinity for hERG and other opioid receptors. (C) 2009 Elsevier Ltd. All rights reserved.