Acetic acid (3R,4S,4aR,11bR)-3-acetoxy-6-oxo-1,2,3,4,4a,5,6,11b-octahydro-[1,3]dioxolo[4,5-j]phenanthridin-4-yl ester 在
sodium methylate 作用下,
以
甲醇 为溶剂,
以70%的产率得到(3R,4S,4aR,11bR)-3,4-Dihydroxy-1,3,4,4a,5,11b-hexahydro-2H-[1,3]dioxolo[4,5-j]phenanthridin-6-one