Unified Syntheses of Cavicularin and Riccardin C: Addressing the Synthesis of an Arene Adopting a Boat Configuration
作者:Sarah L. Kostiuk、Timothy Woodcock、Leo F. Dudin、Peter D. Howes、David C. Harrowven
DOI:10.1002/chem.201101550
日期:2011.9.19
Concise syntheses of the natural products cavicularin (ten steps) and riccardin C (seven steps) are reported. Key features of the new synthetic route are a convergent strategy to assemble acyclic precursors and a sequence of regioselective reduction and halogenation steps to facilitate Wittig macrocyclisation and transannular ring contraction reactions.
报告了天然产物小花青素(十步)和蓖麻毒素C(七步)的简捷合成。新合成路线的关键特征是装配无环前体的收敛策略以及一系列区域选择性还原和卤化步骤,以促进Wittig大环化和环过环收缩反应。