Synonyms: 2-Butenoicacid, 4-(acetyloxy)-2-methyl-,decahydro-6-hydroxy-6,8a-dimethyl-3-methylene-2-oxo-4H-bisoxireno[1,8a:2,3]azuleno[4,5-b]furan-4-ylester, [3aR-[3aa,4b(Z),6a,6aR*,7ab,7bb,8ab,8ba,8cb]]-; 4H-Bisoxireno[1,8a:2,3]azuleno[4,5-b]furan,2-butenoic acid deriv.; Jamaicolide B