(1S,3aS,3bR,9aR,9bS,11aS)-1-acetoxy-1-acetyl-8-{[(1R,3aS,3bR,9aR,9bS,11aS)-1-acetoxy-1-acetyl-9a,11a-dimethyl-7-oxo-2,3,3a,3b,4,5,7,8,9,9a,9b,10,11,11a-tetradecahydro-1H-cyclopenta[1,2-a]phenanthren-5-yl]methyl}-5,9a,11a-trimethyl-2,3,3a,3b,7,8,9,9a,9b,10,11,11a-dodecahydro-1H-cyclopenta[1,2-a]phenanthren-7-one