(6E,9R,10E,11aS)-3-[(acetyloxy)methyl]-6,10-dimethyl-2-oxo-2,4,5,8,9,11a-hexahydrocyclodeca[b]furan-9-yl rel-(2E)-2-methylbut-2-enoate 13-Acetoxy 3beta-tigloyl-germacra-1(10)E,4E,7(11)-trien-12,6alpha-olide 2-Methyl-but-2-enoic acid 3-acetoxymethyl-6,10-dimethyl-2-oxo-2,4,5,8,9,11a-hexahydro-cyclodeca[b]furan-9-yl ester 2-butenoic acid, 2-methyl-, (6E,9S,10E,11aR)-3-[(acetyloxy)methyl]-2,4,5,8,9,11a-hexahydro-6,10-dimethyl-2-oxocyclodeca[b]furan-9-yl ester, (2E)- InChI=1/C22H28O6/c1-6-14(3)21(24)27-19-10-8-13(2)7-9-17-18(12-26-16(5)23)22(25)28-20(17)11-15(19)4/h6,8,11,19-20H,7,9-10,12H2,1-5H3/b13-8+,14-6+,15-11+/t19-,20+/m0/s