Stereocontrolled construction of substituted pyrrolidines based on intramolecular protodesilylation reaction. Enantiospecific synthesis of (–)-kainic acid and (+)-allokainic acid from<scp>L</scp>-serine
作者:Susumi Hatakeyama、Kazutoshi Sugawara、Seiichi Takano
DOI:10.1039/c39930000125
日期:——
Novel Stereocontrolled enantiospecific syntheses of (â)-kainic acid and (+)-allokainic acid have been achieved starting from L-serine via two modes of C-2 and C-3 side chain-directed intramolecular protodesilylations of 4-(trimethylsilylmethyl)ethylidenepyrrolidines.
以 L-丝氨酸为起点,通过 4-(三甲基硅甲基)亚乙基吡咯烷的 C-2 和 C-3 侧链定向分子内原代甲硅烷基化的两种模式,实现了 (à)-卡因酸和 (+)-allokainic acid 的新型立体可控对映体特异性合成。