Sharpless AD strategy towards the γ-methyl butenolide unit of acetogenins: enantioselective synthesis of butenolide I and II with mosquito larvicidal activity
作者:Yan-Tao He、Hui-Na Yang、Zhu-Jun Yao
DOI:10.1016/s0040-4020(02)01063-3
日期:2002.10
butenolides has been established based on Sharpless asymmetric dihydroxylation in high yields and good enantiopurity. The route could be expanded to the synthesis of α,γ-disubstituted butenolide units of naturally occurring annonaceous acetogenins. Utilizing this strategy, three simple natural products with butenolide segments were synthesized enantioselectively.
基于Sharpless不对称二羟基化技术,以高收率和良好的对映体纯度为基础,建立了一种针对γ-甲基丁烯内酯的新型合成策略。该途径可扩展为合成天然存在的非丙酮产乙酸原素的α,γ-二取代丁烯内酯单元。利用这种策略,对映体选择性合成了三种具有丁烯内酯链段的简单天然产物。