7-chloro-3-(2,2,2-trifluoroacetyl)-6-trifluoromethylsulfonyloxy-2,3,4,5-tetrahydro-1H-benzo[d]azepine 、
4-[(2,2-dimethyl-propionylamino)-methyl]-benzylamine 在
crude mixture 、 silica gel 、
ethyl acetate n-hexane 作用下,
以to obtain 7-chloro-6-{4-[(2,2-dimethyl-propionylamino)-methyl]-benzylamino}-3-(2,2,2-trifluoroacetyl)-2,3,4,5-tetrahydro-1H-benzo[d]azepine as a yellow oil (265 mg, 76%)的产率得到7-chloro-6-{4-[(2,2-dimethyl-propionylamino)-methyl]-benzylamino}-3-(2,2,2-trifluoroacetyl)-2,3,4,5-tetrahydro-1H-benzo[d]azepine