(1S,11S,15S)-5-hydroxy-15-methyltetracyclo[8.7.0.0^{2,7}.0^{11,15}]heptadeca-2(7),3,5,9-tetraen-14-one
(1S,11S,15S)-5-hydroxy-15-methyltetracyclo[8.7.0.02,7.011,15]heptadeca-2,4,6,9-tetraen-14-one
(3aS,9bS,11aS)-7-hydroxy-11a-methyl-1H,2H,3H,3aH,5H,9bH,10H,11H,11aH-cyclopenta[a]phenanthren-1-one