Studies on the syntheses of heterocyclic and natural compounds. Part 939
作者:Tetsuji Kametani、Hiroo Matsumoto、Toshio Honda、Mitsuo Nagai、Keiichiro Fukumoto
DOI:10.1016/s0040-4020(01)98955-0
日期:1981.1
A stereoselective synthesis of des-A-ring steroids and has been achieved by an intramolecular cycloaddition of 3-isopropenyl-5-(4-methoxybenzocyclobutenyl) pentan-2-one-2-ethylene ketal and 1-(4-methoxy-benzocyclobutenyl)-4-methylpent-4-en-3-ol , respectively.
DES-A-环甾族化合物的立体选择性合成并已通过3-异丙烯基-5-(4- methoxybenzocyclobutenyl)的分子内环化加成实现戊-2-酮-2-酮乙二醇缩酮和1-(4- methoxybenzocyclobutenyl)分别是-4-methylpent-4-en-3-ol 。