作者:Toshio Honda、Miho Katoh、Shin-ichi Yamane
DOI:10.1039/p19960002291
日期:——
Stereoselective construction of a steroidal side chain containing a 26–27 cyclopropane ring, compound 22, has been achieved by an intramolecular cyclisation of the corresponding β-methylsulfonyloxy cyanide 16, derived from a chiral cyclopentane derivative. Compound 22 has been further utilised in the synthesis of the naturally occurring steroid petrosterol 3.
通过手性环戊烷衍生物衍生出的相应 β-甲基磺酰氧基氰化物 16 的分子内环化反应,实现了含有 26-27 环丙烷环的甾体侧链--化合物 22 的立体选择性构建。化合物 22 还被进一步用于合成天然甾醇 petrosterol 3。