87686-93-9

2H,16H-22,26-Epoxy-1,24-etheno-6,10:11,15- dimethenopyrido[2',3':17,18]oxacycloeicosino[2,3,- 4-ij]isoquinoline-9,21-diol,3,4,4a,5,16a,17,18,- 19-octahydro-12,20-dimethoxy-,(4aS,16aS)-