IUPAC:O-{[(1S,3aS,3bR,7S,9aR,9bS,11aR)-1-acetyl-7-methoxy-9a-methyl-1H,2H,3H,3aH,3bH,4H,6H,7H,8H,9H,9aH,9bH,10H,11H,11aH-cyclopenta[a]phenanthren-11a-yl]methyl}-1-[(1S,3aS,3bS,7S,9aR,9bS,11aS)-7-methoxy-9a,11a-dimethyl-1H,2H,3H,3aH,3bH,4H,6H,7H,8H,9H,9aH,9bH,10H,11H,11aH-cyclopenta[a]phenanthren-1-yl]ethan-1-one
IUPAC:O-{[(1S,3aS,3bR,7S,9aR,9bS,11aR)-1-acetyl-7-methoxy-9a-methyl-1H,2H,3H,3aH,3bH,4H,6H,7H,8H,9H,9aH,9bH,10H,11H,11aH-cyclopenta[a]phenanthren-11a-yl]methyl}-1-[(1S,3aS,3bS,7S,9aR,9bS,11aS)-7-methoxy-9a,11a-dimethyl-1H,2H,3H,3aH,3bH,4H,6H,7H,8H,9H,9aH,9bH,10H,11H,11aH-cyclopenta[a]phenanthren-1-yl]ethan-1-one