Indole Diterpene Synthetic Studies: Development of a Second-Generation Synthetic Strategy for (+)-Nodulisporic Acids A and B
作者:Amos B. Smith、László Kürti、Akin H. Davulcu、Young Shin Cho、Kazuyuki Ohmoto
DOI:10.1021/jo062423a
日期:2007.6.1
A second-generation strategy for construction of (+)-nodulisporic acids A and B based on the development of a new, effective modular indole synthesis exploiting a sequential Stille cross-coupling/Buchwald−Hartwig union/cyclization tactic is disclosed. This strategy evolved due to the considerable acid instability of the C(24) hydroxyl group observed in several advanced intermediates during our first-generation
公开了基于开发一种新的,有效的模块化吲哚合成的第二代构建(+)-去甲孢子酸A和B的策略,该合成利用顺序Stille交叉偶联/ Buchwald-Hartwig联合/环化策略。由于在我们的第一代方法中的几个高级中间体中观察到的C(24)羟基相当酸不稳定,因此该策略得以发展。