CC1(C)CC2=C3C=C[C@@H]4[C@@](C)(CCC(=O)O)[C@H]([C@@](C)(O)CO)CC[C@@]4(C)[C@]3(C)[C@@H](O)C[C@@]2(C)[C@H](O)C1 3-[(1R,2R,4aR,4bS,5S,6aR,7R,12aR)-2-[(2R)-1,2-dihydroxypropan-2-yl]-5,7-dihydroxy-1,4a,4b,6a,9,9-hexamethyl-3,4,5,6,7,8,10,12a-octahydro-2H-chrysen-1-yl]propanoic acid