Studies on cardiotonic agents. IV. Synthesis of novel 1-(6,7-dimethoxy-4-quinazolinyl)piperidine derivatives carrying substituted hydantoin and 2-thiohydantoin rings.
作者:Yuji NOMOTO、Haruki TAKAI、Tadashi HIRATA、Masayuki TERANISHI、Tetsuji OHNO、Kazuhiro KUBO
DOI:10.1248/cpb.38.3014
日期:——
7-dimethoxy-4-quinazolinyl)piperidines carrying substituted hydantoin and 2-thiohydantoin rings was synthesized and examined for cardiotonic activity in anesthetized dogs. Introduction of isopropyl and sec-butyl group at the 5-position of the hydantoin and thiohydantoin rings led to potent inotropic activity. Effects of insertion of an alkyl chain between the piperidine and the hydantoin rings were
合成了一系列带有取代的乙内酰脲和2-巯基乙内酰脲环的新颖的1-(6,7-二甲氧基-4-喹唑啉基)哌啶,并在麻醉的狗中检查了其强心活性。在乙内酰脲和硫代乙内酰脲环的5-位上引入异丙基和仲丁基导致有效的变力活性。还检查了哌啶和乙内酰脲环之间烷基链插入的影响。研究了该系列中最佳强心活动所需的结构要求。