A Tandem Metal Carbene Cyclization−Cycloaddition Approach to the Pseudolaric Acids
作者:Bin Chen、Rebecca Y. Y. Ko、Mabel S. M. Yuen、Kin-Fai Cheng、Pauline Chiu
DOI:10.1021/jo026399m
日期:2003.5.1
An approach toward the synthesis of the antifungal and cytotoxic pseudolaric acids based on the tandem metalcarbene cyclization-cycloaddition reaction is described. Using this strategy, the advanced intermediate 3a bearing three of the four stereocenters of the target molecules has been synthesized. The substrate-controlled diastereoselectivity of the tandem carbene cyclization-cycloaddition was preferential