IUPAC:4-[(1R,3aS,3bR,5aR,7S,9aS,9bS,10R,11aR)-3a,10-dihydroxy-7-{[(2R,4S,5S,6R)-5-hydroxy-4-methoxy-6-methyloxan-2-yl]oxy}-9a,11a-dimethyl-hexadecahydro-1H-cyclopenta[a]phenanthren-1-yl]-2,5-dihydrofuran-2-one
IUPAC:4-[(1R,3aS,3bR,5aR,7S,9aS,9bS,10R,11aR)-3a,10-dihydroxy-7-{[(2R,4S,5S,6R)-5-hydroxy-4-methoxy-6-methyloxan-2-yl]oxy}-9a,11a-dimethyl-hexadecahydro-1H-cyclopenta[a]phenanthren-1-yl]-2,5-dihydrofuran-2-one