(1S,5S,9E,11S,14S)-14-hydroxy-5-methyl-4,15-dioxabicyclo[9.3.1]pentadeca-9,12-dien-3-one;(1S,5S,11S,14S,E)-14-hydroxy-5-methyl-4,15-dioxabicyclo[9.3.1]pentadeca-9,12-dien-3-one;(+)-asperigillide C
Enantioselective Total Synthesis of Aspergillide C
作者:Tomohiro Nagasawa、Shigefumi Kuwahara
DOI:10.1021/ol802803x
日期:2009.2.5
The first enantioselective totalsynthesis of aspergillide C, a cytotoxic 14-membered macrolide isolated from the marine-derived fungus Aspergillus ostianus, has been accomplished from a commercially available chiral glycidol derivative by a 12-step sequence involving an expeditious preparation of a cyclic acetal intermediate and a trans-selective Ferrier-type two-carbon homologation reaction.
Total Synthesis of Both Enantiomers of Macrocyclic Lactone Aspergillide C
作者:P. Srihari、Y. Sridhar
DOI:10.1002/ejoc.201100917
日期:2011.11
A facile approach to the totalsynthesis of both enantiomers of the 14-membered macrolactone aspergillide C is described. The strategy employed was also utilized for the synthesis of C4-epimers of both the enantiomers of aspergillide C. The key reactions include Sharpless kinetic resolution, Achmatowicz reaction, Ferrier type alkynylation, hydrosilylation-protodesilylation, Corey–Bakshi–Shibata (CBS)
描述了一种简单的方法来全合成 14 元大环内酯曲霉内酯 C 的两种对映异构体。所采用的策略也用于合成曲霉醇 C 对映异构体的 C4-差向异构体。 关键反应包括 Sharpless 动力学拆分、Achmatowicz 反应、Ferrier 型炔基化、氢化硅烷化-原脱甲硅烷化、Corey-Bakshi-Shibata (CBS) 介导的还原和山口大环内酯化。