9,10-dimethoxy-8,8-dimethyl-13-pyridin-2-ylmethyl-5,6,8,13-tetrahydro-[1 ,3]dioxolo[4,5-g]isoquino[3,2-a]isoquinolin-7-ylium bromide 在
甲醇 、 sodium tetrahydroborate 作用下,
反应 0.33h,
以21%的产率得到9,10-dimethoxy-8,8-dimethyl-13-pyridin-2-ylmethyl-5,8,13,13 a-tetrahydro-6H-[1,3]dioxolo[4,5-g]isoquino[3,2-a]isoquinoline