methyl (3S)-4,9-dihydro-3H-pyrido[3,4-b]indole-3-carboxylate 、 {Ethoxy-[4-methoxy-2-methylene-cyclohex-3-en-(E)-ylidene]-methoxy}-triethyl-silane 以
氯仿 为溶剂,
以40%的产率得到(7S,13bR)-2-Methoxy-5-oxo-3,4,5,7,8,13,13b,14-octahydro-indolo[2',3':3,4]pyrido[1,2-b]isoquinoline-7-carboxylic acid methyl ester