Synonyms: Propanoicacid, 2-methyl-,2,3,3a,4,5,6,7,8,9,11a-decahydro-8,9-dihydroxy-6,10-dimethyl-3-methylene-2-oxo-6,9-epoxycyclodeca[b]furan-4-ylester, [3aR-(3aR*,4R*,6S*,8S*,9S*,10Z,11aR*)]-; 6,9-Epoxycyclodeca[b]furan,propanoic acid deriv.; Tagitinin B