Ethyl 1,7-diphenyl-1,2,3,5,6,7-hexahydropyrido[3,2,1-ij]quinoline-9-carboxylate 、
sodium hydroxide 在
正己烷 作用下,
以
乙醇 为溶剂,
以Hexane to give 1,7-diphenyl-1,2,3,5,6,7-hexahydropyrido[3,2,1-ij]quinoline-9-carboxylic acid (14), (2 g 54%)的产率得到1,7-diphenyl-1,2,3,5,6,7-hexahydropyrido[3,2,1-ij]quinoline-9-carboxylic acid