Synthesis and structure–activity relationships of amide derivatives of (4,4-difluoro-1,2,3,4-tetrahydro-5H-1-benzazepin-5-ylidene)acetic acid as selective arginine vasopressin V2 receptor agonists
作者:Issei Tsukamoto、Hiroyuki Koshio、Takahiro Kuramochi、Chikashi Saitoh、Hiroko Yanai-Inamura、Chika Kitada-Nozawa、Eisaku Yamamoto、Takeyuki Yatsu、Yoshiaki Shimada、Shuichi Sakamoto、Shin-ichi Tsukamoto
DOI:10.1016/j.bmc.2009.03.001
日期:2009.4
A series of (4,4-difluoro-1,2,3,4-tetrahydro-5H-1-benzazepin-5-ylidene)acetamide derivatives was synthesized, and their structure-activity relationships were examined in order to identify potent and selective arginine vasopressin V-2 receptor agonists. Attempts to substitute other chemical groups in place of the 2-pyridilmethyl moiety of 1a led to the discovery that potent V-2 binding affinity could be obtained with a wide range of functional groups. This structural tolerance allowed for the manipulation of other attributes, such as selectivity against V-1a receptor affinity or avoidance of the undesirable inhibition of cytochrome P450 (CYP), without losing potent affinity for the V-2 receptor. Some representative compounds obtained in this study were also found to decrease urine volume in awake rats. (C) 2009 Elsevier Ltd. All rights reserved.