549-07-5 6,9-(Epoxymethano)-8,11:20,23-dietheno-1H,12H-[1,10]dioxacyclooctadecino[2,3,4-ij:11,12,13-i'j']diisoquinoline,2,3,12a,13,14,15,24,24a-octahydro-5,17,18-trimethoxy-1,13-dimethyl-,[12aR-(12aR*,24aR*)]- 54913-26-7 (3aS)-1,2,3a,4,4aβ,6,7,9,13bβ,13cβ-Decahydro-7β-hydroxy-9α-(hydroxymethyl)-11-methoxy-5,12-dimethyl-4α,6α-methano-5H-benz[h]oxazolo[3,2-a]pyrazino[3,2,1-de][1,5]naphthyridine-10,13-dione