Synthesis and angiotensin-converting enzyme inhibitory activity of 3-(mercaptomethyl)-2-oxo-1-pyrrolidineacetic acids and 3-(mercaptomethyl)-2-oxo-1-piperidineacetic acids
作者:Sylvester Klutchko、Milton L. Hoefle、Ronald D. Smith、Arnold D. Essenburg、Robert B. Parker、Vicki L. Nemeth、Michael Ryan、Deborah H. Dugan、Harvey R. Kaplan
DOI:10.1021/jm00133a021
日期:1981.1
were obtained from 3-(hydroxymethyl)lactams 2 and 2a by a direct dehydration with dicyclohexylcarbodiimide using cuprous iodide as a catalyst. Introduction of the sulfhydryl group was accomplished by a Michael addition of these alpha, beta-unsaturated lactams. The compound with the highest in vitro activity was 3-(mercaptomethyl)-2-oxo-1-piperidineacetic acid (7a). The activity of the 7a both in vitro
合成了许多γ-和δ-内酰胺衍生物,并比较了它们的体外血管紧张素转化酶(ACE)抑制活性。这些化合物的结构设计为包括卡托普利的许多重要特征。合成涉及制备各种新型的3-亚甲基-2-吡咯烷酮(3-5和16)和3-亚甲基-2-哌啶酮(3a-5a,10-12和17)。关键中间体3-亚甲基内酰胺3和3a由3-(羟甲基)内酰胺2和2a通过使用碘化亚铜作为催化剂与二环己基碳二亚胺直接脱水而获得。通过这些α,β-不饱和内酰胺的迈克尔加成来实现巯基的引入。具有最高体外活性的化合物是3-(巯基甲基)-2-氧代-1-哌啶乙酸(7a)。