23509-23-1

1-[(5aR,7aR,9S,11aS,12R)-9,12-dihydroxy-2,11a-dimethyl-1,2,3,4,7a,8,9,10,11,11a,12,13-dodecahydro-7H-9,11b-epoxy-13a,5a-prop[1]enophenanthro[2,1-f][1,4]oxazepin-14-yl]ethyl 5-acetyl-2,4-dimethyl-1H-pyrrole-3-carboxylate