(6aS,7aR,8aR,9aR)-4-methoxy-6-(4-methoxybenzyl)-6a,7a,8a,9a-tetrahydro-[1,3]dioxolo[4,5-j]oxireno[2,3-b]phenanthridine-5,9(6H,7H)-dione

(6aS,7aR,8aS,9S,9aR)-9-hydroxy-4-methoxy-6-(4-methoxybenzyl)-6a,7,7a,8a,9,9a-hexahydro-[1,3]dioxolo[4,5-j]oxireno[2,3-b]phenanthridin-5(6H)-one