Highly Efficient Formal Synthesis of Cephalotaxine, Using the Stevens Rearrangement−Acid Lactonization Sequence as A Key Transformation
作者:Mo-ran Sun、Hong-tao Lu、Yan-zhi Wang、Hua Yang、Hong-min Liu
DOI:10.1021/jo8025252
日期:2009.3.6
Cephalotaxine (1), the major alkaloid isolated from Cephalotaxus species, has attracted considerable attention due to the promising antitumor activity of several of its derivatives and its unique structural features. Herein we describe a highlyefficient formal synthesis of 1 employing the [2,3]-Stevens rearrangement−acid lactonization sequence as a key transformation from readily available (3,4-d