20685-55-6 (3R,5R,8S,9S,10S,11S,13S,14S,17S)-10,13-dimethyl-2,3,4,5,6,7,8,9,11,12 ,14,15,16,17-tetradecahydro-1H-cyclopenta[a]phenanthrene-3,11,17-triol 90734-99-9 (Z)-2-Methyl-2-butenoic acid (3aR)-7α-(acetyloxy)-2,3,3aβ,4,5,7,7aα,8a,8b,8cα-decahydro-4β,8bβ-dihydroxy-6,8aα-dimethyl-3-methylene-2-oxooxireno[2,3]azuleno[4,5-b]furan-5α-yl ester