Construction of the colchicine framework via two consecutive cyclopropane-mediated ring-expansion reactions
作者:Martin G. Banwell、Mariana Berak、David C. R. Hockless
DOI:10.1039/p19960002217
日期:——
The seven-membered B- and C-rings of tropone 19, a molecule which embodies the framework of the alkaloid colchicine 1, have both been constructed via cyclopropanemediated expansion of a six-membered ring precursor.
托品酮 19 是一种体现生物碱秋水仙碱 1 框架的分子,它的七元 B 环和 C 环都是通过环丙烷对六元环前体进行扩增而形成的。