1-[8,9-dimethoxy-1,3-dihydro-2H-3-benzazepin-2-on-3-yl]-3-[N-methyl-N-(2-{3,4-dimethoxyphenyl}-ethyl)-amino]-propane 以75%的产率得到1-[8,9-Dimethoxy-1,3,4,5-tetrahydro-2H-3-benzazepin-2-on-3-yl]-3-[N-methyl-N-(2-{3,4-dimethoxy-phenyl}-ethyl)amino]-propane hydrochloride