(1E,3Z)-1-甲氧基-2-甲基-3-(三甲基硅氧基)-1,3-戊二烯 、
methyl (3S)-4,9-dihydro-3H-pyrido[3,4-b]indole-3-carboxylate 在
zinc(II) chloride 作用下,
以
乙腈 为溶剂,
生成 (1R,6S,12bR)-1,3-Dimethyl-2-oxo-1,2,6,7,12,12b-hexahydro-indolo[2,3-a]quinolizine-6-carboxylic acid methyl ester 、
(1R,6S,12bR)-1,3-Dimethyl-2-oxo-1,2,6,7,12,12b-hexahydro-indolo[2,3-a]quinolizine-6-carboxylic acid methyl ester