Inhibitors of Acyl-CoA:Cholesterol Acyltransferase. 1. Synthesis and Hypocholesterolemic Activity of Dibenz[b,e]oxepin-11-carboxanilides
作者:Toshiaki Kumazawa、Masashi Yanase、Hiroyuki Harakawa、Hiroyuki Obase、Shiro Shirakura、Eiko Ohishi、Shoji Oda、Kazuhiro Kubo、Koji Yamada
DOI:10.1021/jm00032a014
日期:1994.3
inhibitory activity, and the potency increased with increasing size of the substituents, with maximum potency being obtained with a 2,6-diisopropyl substitution. The position of the substituent on the dibenz[b,e]oxepin ring system influenced the activity, and substitution at position 2 was critical for potent activity. The electronic effect of the substituent at position 2 does not influence activity, but
根据已报道的酰基辅酶A:胆固醇酰基转移酶(ACAT)抑制剂的结构,制备了一系列的N-苯基-6,11-二氢二苯并[b,e]氧杂环庚烷-11-羧酰胺及其相关衍生物。测试了这些化合物的体外抑制ACAT(胆固醇喂养的兔子肝脏微粒体)和体内降低胆固醇喂养的金仓鼠血清总胆固醇的能力。体外的构效关系如下。苯胺中2和6位的取代导致有效的抑制活性,并且效力随着取代基大小的增加而增加,其中最大的效力是通过2,6-二异丙基取代获得的。苯并[b,e]氧杂环丁烯环系统上取代基的位置会影响活性,位置2的取代对于有效活性至关重要。2位取代基的电子效应不影响活性,但蓬松度似乎是重要的因素。化合物的亲脂性在确定ACAT抑制活性中也起着重要作用。在测试的化合物中,2-溴-N-(2,6-二异丙基苯基)-6,11-二氢二苯并-[b,e] ++ + oxepin-11-羧酰胺(33,KF17828)显示出显着的体外活性(兔肝微粒体IC50