Novel, efficient total synthesis of natural 20(S)-camptothecin
作者:Chao-Jun Tang、Matej Babjak、Regan J. Anderson、Andrew E. Greene、Alice Kanazawa
DOI:10.1039/b611202a
日期:——
Enantiopure 20(S)-camptothecin has been prepared from a known hydroxypyridone through a novel approach that involves a Claisen rearrangement, an asymmetric nucleophilic ethylation, a Heck coupling and a Friedlander condensation as the key transformations.