Enantiospecific Total Synthesis and Absolute Configuration Assignment of Chabrolobenzoquinone H
作者:Stergios R. Rizos、Konstantinos A. Ouzounthanasis、Alexandros E. Koumbis
DOI:10.1021/acs.joc.1c02634
日期:2022.1.21
meroditerpene metabolite with cytotoxic activity, is synthesized via a stereoselective Julia–Kocienski olefination between a chiral pool derived aliphatic PT-sulfone and a benzoquinone aldehyde partner. The latter was obtained via consecutive chain extension steps involving a Stille coupling and a stereospecific olefin cross-metathesis reaction followed by malonic ester synthesis and a Krapcho decarboxylation
Chabrolobenzoquinone H ( 1 ) 是一种具有细胞毒活性的美二萜代谢物,通过手性池衍生的脂肪族 PT-砜和苯醌醛伴侣之间的立体选择性 Julia-Kocienski 烯化合成。后者是通过连续的扩链步骤获得的,包括 Stille 偶联和立体定向烯烃交叉复分解反应,然后是丙二酸酯合成和 Krapcho 脱羧。此外,这种全合成安全地确定了目标天然产物的绝对构型。