聚合甲醛 、
1-[7,8-dimethoxy-1,3,4,5-tetrahydro-2H-3-benzazepin-2-on-3-yl]-3-[N-methyl-N-(2-{4-amino-phenyl}-ethyl)-amino]-propane 以40%的产率得到1-[7,8-Dimethoxy-1,3,4,5-tetrahydro-2H-3-benzazepin-2-on-3-yl]-3-[N-methyl-N-(2-{4-dimethylamino-phenyl}ethyl)-amino]-propane dihydrochloride