6-carbamoylmethyl-9,10-dimethoxy-6,12-dihydro-7
H-benzo[5,6][1,4]thiazino[3,4-
a]isoquinolinylium; perchlorate 在
sodium tetrahydroborate 作用下,
以
甲醇 为溶剂,
生成
2-(9,10-dimethoxy-6,7,11b,12-tetrahydro-benzo[5,6][1,4]thiazino[3,4-a]isoquinolin-6-yl)-acetamide