tert-butyl [1-{[(2-chloro-2,2-difluoroacetyl)-methylamino]-methyl}-1-(3,4-dichlorophenyl)-3-oxopropyl]methylcarbamate 、
Spiro[benzo[c]thiophene-1(3H),4'-piperidin]-(2S)-oxide(S)-(+)-mandelate 在
sodium cyanoborohydride 、
溶剂黄146 作用下,
以
甲醇 为溶剂,
反应 0.5h,
以96%的产率得到tert-butyl {1-{[(2-chloro-2,2-difluoroacetyl)-methylamino]-methyl}-1-(3,4-dichlorophenyl)-3-{spiro[benzo(c)thiophene-1(3H),4'-piperidine]-(2S)-oxide}-1'-yl-propyl}-methyl-carbamate