Total Synthesis of (−)-Nodulisporic Acids D, C, and B: Evolution of a Unified Synthetic Strategy
作者:Yike Zou、Xiangqin Li、Yun Yang、Simon Berritt、Jason Melvin、Stephen Gonzales、Matthew Spafford、Amos B. Smith
DOI:10.1021/jacs.8b04053
日期:2018.8.1
A unified synthetic strategy leading to the total synthesis of (-)-nodulisporic acids D, C, and B is described. Key synthetic transformations include a nickel-chromium-mediated cyclization, an aromatic ring functionalization employing a novel copper-promoted alkylation, a palladium-catalyzed cross-coupling cascade/indole ring construction, and a palladium-mediated regio- and diastereoselective allylic
描述了导致 (-)-球孢酸 D、C 和 B 全合成的统一合成策略。关键的合成转化包括镍铬介导的环化、采用新型铜促进的烷基化的芳环官能化、钯催化的交叉偶联级联/吲哚环结构以及钯介导的区域和非对映选择性烯丙基取代/环化反应,后者构建环D。