A flexible and unified strategy for syntheses of cladospolides A, B, C, and iso-cladospolide B
作者:Debjani Si、Narayana M. Sekar、Krishna P. Kaliappan
DOI:10.1039/c1ob05787a
日期:——
efficient and flexible strategy for the syntheses of cladospolides A–C and iso-cladospolide B is reported here. This strategy involves Julia–Kocienski olefination and Yamaguchi macrolactonization as key steps, starting from either D-ribose or suitable tartaric acid esters. Although our initial efforts towards cladospolide A involving a ring closing metathetic approach were not successful, changing the mode
一种简单,有效和灵活的策略,用于合成clasospolides A–C和 iso- cladospolideB在这里报告。该策略涉及朱莉娅·科琴斯基(Julien-Kocienski)烯烃化和山口宏内酯化的关键步骤,从这两个步骤开始D-核糖 或合适 酒石酸酯。尽管我们最初针对涉及闭环易位方法的cladospolide A的尝试并未成功,但改变闭环模式和使用Julia-Kocienski烯烃进行关键中间体的构建解决了该问题,并为完成总的产品铺平了道路。这类天然产物的合成。