[2-(6,7-Dimethoxy-3,4-dihydro-isoquinolin-1-yl)-ethyl]-phenyl-carbamic acid benzyl ester; hydrochloride                                                                                                                                                              在
                                                                                                                                                                                 sodium tetrahydroborate                                                                                                                                  作用下,
                                                                                                                以
                                                                                         
甲醇                                                                                  为溶剂,
                                                                                                                                                    反应 6.0h,
                                                                                                                生成                                                 
[2-(6,7-Dimethoxy-1,2,3,4-tetrahydro-isoquinolin-1-yl)-ethyl]-phenyl-carbamic acid benzyl ester