Studies on the synthesis of akuammiline-type alkaloids. Construction of the hexahydro-1,5-methanoazocino[3,4-b)indole fragment
作者:M.-Lluïsa Bennasar、Ester Zulaica、Manel López、Joan Bosch
DOI:10.1016/s0040-4039(00)86060-8
日期:1988.1
A three step route to the title tetracyclic substructure of akuammiline-type alkaloids consisting in the nucleophilic addition of an ester α-anion to an N-alkylpyridinium salt, acid-induced cyclization of the resultant 1,4-dihydropyridine, and stereoselective elaboration of the ethylidene substituent is reported.
标题为akuammiline型生物碱的四环亚结构的三步路线,包括将酯α-阴离子亲核加成至N-烷基吡啶鎓盐,酸诱导所得1,4-二氢吡啶的环化反应以及立体选择报道了亚乙基取代基。