Structure–activity relationships of novel piperazines as antagonists for the melanocortin-4 receptor
作者:Dai Nozawa、Taketoshi Okubo、Takaaki Ishii、Hiroyuki Kakinuma、Shigeyuki Chaki、Shigeru Okuyama、Atsuro Nakazato
DOI:10.1016/j.bmc.2006.12.039
日期:2007.3
During the investigation of antagonists for the MC4 receptor, we found that 10ab having a naphthyl group showed almost the same binding affinity for the MC4 receptor as that of the lead compound I with a benzoyl group. We also developed a new type of compounds.. namely, bis-piperazines, and found that the bis-piperazines 10 exhibited a high affinity for the MC4 receptor. In particular, (-)-10bg exhibited the highest affinity for the MC4 receptor with an IC50 value of 8.13 nM. In this paper, we present the design, synthesis, and structure-activity relationships of the novel bis-piperazines as MC4 receptor antagonists. (c) 2007 Elsevier Ltd. All rights reserved.