The Senecio alkaloids. The structure and absolute configuration of isoline
作者:E. D. Coucourakis、C. G. Gordon-Gray、C. G. Whiteley
DOI:10.1039/p19720002339
日期:——
The structure and absolute configuration of the alkaloid isoline has been determined by showing that its acid portion, isolinecic acid, is (2S,3R,5S)-5-ethyl-2,5-dihydroxy-2,3-dimethylhexanedioic acid (1). The stereochemistry was defined by degradation of the acid to 3-methylheptane-2,5-dione (4) of known absolute configuration.
通过显示其酸部分(异辛酸)为(2 S,3 R,5 S)-5-乙基-2,5-二羟基-2,3-二甲基己二酸来确定该生物碱同功碱的结构和绝对构型(1)。通过将酸降解为已知绝对构型的3-甲基庚烷-2,5-二酮(4)来定义立体化学。