Design, synthesis and identification of novel benzimidazole derivatives as highly potent NPY Y5 receptor antagonists with attractive in vitro ADME profiles
作者:Yuusuke Tamura、Naoki Omori、Naoki Kouyama、Yuji Nishiura、Kyouhei Hayashi、Kana Watanabe、Yukari Tanaka、Takeshi Chiba、Hideo Yukioka、Hiroki Sato、Takayuki Okuno
DOI:10.1016/j.bmcl.2012.07.020
日期:2012.9
Optimization of our HTS hit 1, mainly focused on modification at the C-2 position of the benzimidazole core, is described. Elimination of the flexible and metabolically labile -S-CH2- part and utilization of less lipophilic pyridone substructure led to identification of novel NPY Y5 receptor antagonists 6, which have low to sub-nanomolar Y5 receptor binding affinity with improved CYP450 inhibition profiles, good solubilities and high metabolic stabilities. (c) 2012 Elsevier Ltd. All rights reserved.