A new class of calcium antagonists. Synthesis and biological activity of 11-[(.omega.-aminoalkanoyl)amino]-6,6a,7,8,9,10,10a,11-octahydrodibenzo[b,e]thiepin derivatives
作者:Mikio Kurokawa、Fuminori Sato、Naonobu Hatano、Yayoi Honda、Hitoshi Uno
DOI:10.1021/jm00106a019
日期:1991.2
A series of 11-[(omega-aminoalkanoyl)amino]-6,6a,7,8,9,10,10a,11?? -octahydrodibenzo[b,e]thiepin derivatives were prepared and found to be a structurally new class of calcium antagonists. The structure-activity relationship studies indicated that the optimum was (6aR*, 10aR*, 11R*)-11-[[4-[4-(4-fluorophenyl)-1-piperazinyl]butyryl]amino]-6,6a7,8,9,10,10a,11-octahydrodibenzo[b,e]thiepin (31, pA2 8.16), which was superior to diltiazem (pA2 7.42) in calcium antagonistic activity. Compound 31 showed antihypertensive activity in anesthetized rats, without a significant effect on the heart rate. It had also antianginal effects in vasopressin-induced ST-depression and methacholine-induced ST-elevation testings in rats. These potencies of 31 were essentially equal to those of diltiazem.