Synonyms: 2-Butenoicacid, 2-methyl-,1a,2,3,6,7,7a,8,9,10a,10b-decahydro-1a,5-dimethyl-8-methylene-9-oxooxireno[9,10]cyclodeca[1,2-b]furan-7-ylester, [1aR-[1aR*,4E,7R*(Z),7aR*,10aS*,10bR*]]-;Oxireno[9,10]cyclodeca[1,2-b]furan, 2-butenoic acid deriv.; Deltoidin A