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