2-(2-benzene-sulphonyloxy-ethyl)-naphthalene 、
2-[(piperidin-3-yl)-methyl]-6,7-methylenedioxy-1-oxo-1,2,3,4-tetrahydro-isoquinoline 以27.9%的产率得到2-[(N-(2-(Naphth-2-yl)-ethyl)-piperidin-3-yl)-methyl]-6,7-methylenedioxy-1-oxo-1,2,3,4-tetrahydro-isoquinoline-hydrochloride