IUPAC:(2R,3R,4R,6R,11'R,15'R)-3,4'-dihydroxy-6-methyl-2',9',13'-trioxo-12',16'-dioxaspiro[oxane-2,17'-tetracyclo[8.7.0.0^{3,8}.0^{11,15}]heptadecane]-1'(10'),3'(8'),4',6'-tetraen-4-yl acetate
IUPAC:(2R,3R,4R,6R,11'R,15'R)-3,4'-dihydroxy-6-methyl-2',9',13'-trioxo-12',16'-dioxaspiro[oxane-2,17'-tetracyclo[8.7.0.0^{3,8}.0^{11,15}]heptadecane]-1'(10'),3'(8'),4',6'-tetraen-4-yl acetate