(3,4-dimethoxyphenyl)(4-hydroxy-3,4-dihydroquinolin-1(2H)-yl)methanone 、
1’-苄基螺[吲哚啉-3,4’-哌啶] 以to give the product of interest, i.e., 4-(1′-benzylspiro[indoline-3,4′-piperidin]-1-yl)-1-(3,4-dimethoxybenzoyl)-1,2,3,4-tetrahydroquinoline (211 mg, yield: 48%) as a white crystal的产率得到4-(1'-benzylspiro[indoline-3,4'-piperidin]-1-yl)-1-(3,4-dimethoxybenzoyl)-1,2,3,4-tetrahydroquinoline