2-(3-chloropropoxy)-5,6-dimethoxy-naphthalene 、 2-[(piperidin-3-yl)-methyl]-6,7-dimethyl-1-oxo-1,2,3,4-tetrahydro-isoquinoline 以21.3%的产率得到2-[(N-(3-(5,6-Dimethoxy-naphthyl-2-oxy)-propyl)-piperidin-3-yl)-methyl]-6,7-dimethyl-1-oxo-1,2,3,4-tetrahydro-isoquinolinehydrochloride