IUPAC:(2S)-2-[(2R,2'R,6'R,8'aS)-4,6'-dihydroxy-2',5',5',8'a-tetramethyl-6-oxo-3,3',4',4'a,5',6,6',7,7',8,8',8'a-dodecahydro-2'H-spiro[furo[2,3-e]isoindole-2,1'-naphthalen]-7-yl]-5-methoxy-5-oxopentanoic acid
IUPAC:(2S)-2-[(2R,2'R,6'R,8'aS)-4,6'-dihydroxy-2',5',5',8'a-tetramethyl-6-oxo-3,3',4',4'a,5',6,6',7,7',8,8',8'a-dodecahydro-2'H-spiro[furo[2,3-e]isoindole-2,1'-naphthalen]-7-yl]-5-methoxy-5-oxopentanoic acid