1-[7-hydroxy-8-benzyloxy-1,3,4,5-tetrahydro-2H-3-benzazepin-2-on-3-yl]-3-[N-methyl-N-(2-{3,4-dimethoxyphenyl}-ethyl)-amino]-propane 在
硫酸二甲酯 作用下,
以70%的产率得到1-[7-Methoxy-8-benzyloxy-1,3,4,5-tetrahydro-2H-3-benzazepin-2-on-3-yl]-3-[N-methyl-N-(2-{3,4-dimethoxyphenyl}-ethyl)-amino]-propane