A straightforward entry to the ervitsine skeleton. Synthesis of 16-demethyleneervitsine
作者:M.-Lluisa Bennasar、Ester Zulaica、Bernat Vidal、Joan Bosch
DOI:10.1016/s0040-4039(00)74813-1
日期:1992.6
A short synthetic route to 16-demethyleneervitsine (6), based on the nucleophilic addition of 2-acetylindole enolates to N-alkyl-β-acylpyridinium salts and further acid cyclization of the resulting 1,4-dihydropyridine intermediates, is reported.
据报道,基于
2-乙酰基吲哚烯酸
酯向N-烷基-β-酰基
吡啶鎓盐的亲核加成以及所得1,4-
二氢吡啶中间体的进一步酸环化,合成16-
脱亚
甲基维他命(6)的短途径。