2-(2-bromoethyl)-6-methoxy-5-methyl-naphthalene 、 2-[(hexahydro-azepin-3-yl)-methyl]-6,7-methylenedioxy-1-oxo-isoquinoline 以36.1%的产率得到2-[(N-(2-(5-Methyl-6-methoxy-naphth-2-yl)-ethyl)-hexahydro-azepin-3-yl)-methyl]-6,7-methylenedioxy-1-oxo-1,2,3,4-tetrahydro-isoquinoline-hydrochloride