framework of dynemycin A (1) are reported. A series of quinoline based dienophiles containing an activating group (e.g. 5, Scheme 1), reacted with acyclic dienes (e.g. 4, Scheme 1) in a Diels-Alder fashion under increased pressure to afford a variety of heterocyclic systems related to the CDE skeleton of dynemycin A. Reaction of dienophile 15 with cyclic diene 29 led to the novel hetereocycle 34 whereas
报道了针对达尼霉素A(1)的CDE环骨架的构建的研究。一系列含有活化基团(
喹啉基于亲双烯体的例如。5,方案1),与无环二烯烃进行反应(例如,4,方案1)在升高的压力下进行狄尔斯-阿尔德方式,得到了各种有关的杂环体系的达尼霉素A的CDE骨架。亲双烯体15与环状二烯29的反应导致形成新型杂环34,而尝试脱羰41则导致新型
铑促进的末端
乙炔配位化合物的分子内羰基化43。