IUPAC:(2S)-2-[(3R,3aR,5aR,7R,8S,10aS,10bS)-8-[(2R)-1,2-dihydroxypropan-2-yl]-3a,10b-dimethyl-5'-oxo-dodecahydro-1H-spiro[cyclohepta[e]indene-7,2'-oxolan]-3-yl]propanoic acid
IUPAC:(2S)-2-[(3R,3aR,5aR,7R,8S,10aS,10bS)-8-[(2R)-1,2-dihydroxypropan-2-yl]-3a,10b-dimethyl-5'-oxo-dodecahydro-1H-spiro[cyclohepta[e]indene-7,2'-oxolan]-3-yl]propanoic acid