(4R)-4beta-Hydroxy-1,2,3,4,4aalpha,5,6,11balpha-octahydro[1,3]dioxolo[4,5-j]phenanthridine-6-one

(4R)-4beta-Hydroxy-1,2,3,4,4aalpha,5,6,11balpha-octahydro[1,3]dioxolo[4,5-j]phenanthridine-6-one