Synthesis of (−)-auricularic acid and its C-4 epimer the absolute configuration of auricularic acid
作者:Antonio Abad、Manuel Arnó、Miguel Peiró、Ramon J. Zaragozá
DOI:10.1016/s0040-4020(01)80907-8
日期:——
A synthesis of (−)-auricularic acid (2a) starting from methyl (+)-13-oxo- podocarp-8(14)-en-19-oate (3a) and a synthesis of its C-4 epimer (2b) starting from methyl (+)-13-oxopodocarp-8(14)-en-18-oate (3b) are described. The absolute configuration of natural auricularic acid is stablished as (4R, 5S, 8S, 9R, 10S, 14S).
从(+)-13-氧代-掌果8(14)-en-19-Oate酸酯(3a)开始的(-)-Auricularic acid(2a)的合成及其C-4差向异构体(2b)描述了从(+)-13-氧杂果酸8(14)-en-18-油酸酯(3b)开始。天然乌头酸的绝对构型稳定为(4R,5S,8S,9R,10S,14S)。