11-oxo-(8a
r,12a
c,13a
c)-5,8,8a,9,10,11,12,12a,13,13a-decahydro-6
H-[1,3]dioxolo[4,5-
g]isoquino[3,2-
a]isoquinoline-10ξ-carboxylic acid methyl ester 在
sodium tetrahydroborate 作用下,
以
甲醇 、
二氯甲烷 为溶剂,
反应 0.5h,
以69%的产率得到(8aS,10R,11S,12aR,13aS)-11-Hydroxy-5,8,8a,9,10,11,12,12a,13,13a-decahydro-6H-[1,3]dioxolo[4,5-g]isoquino[3,2-a]isoquinoline-10-carboxylic acid methyl ester