Synonyms: Cyclodeca[b]furan-6-carboxylicacid,2,3,3a,4,5,8,9,11a-octahydro-5-hydroxy-10-methyl-3-methylene-4-[(2-methyl-1-oxo-2-butenyl)oxy]-2-oxo-,[3aS-[3aR*,4R*(E),5R*,6Z,10Z,11aS*]]-; Cyclodeca[b]furan-6-carboxylic acid,2,3,3a,4,5,8,9,11a-octahydro-5-hydroxy-10-methyl-3-methylene-4-[[(2E)-2-methyl-1-oxo-2-butenyl]oxy]-2-oxo-,(3aS,4S,5S,6Z,10Z,11aR)- (9CI); Douglasin