(3aR,7S,9R,10E,11aS)-7-hydroxy-10-methyl-3,6-bis(methylene)-2-oxo-2,3,3a,4,5,6,7,8,9,11a-decahydrocyclodeca[b]furan-9-yl rel-acetate InChI=1/C17H22O5/c1-9-5-6-13-11(3)17(20)22-16(13)7-10(2)15(8-14(9)19)21-12(4)18/h7,13-16,19H,1,3,5-6,8H2,2,4H3/b10-7+/t13-,14+,15-,16+/m0/s cyclodeca[b]furan-2(3H)-one, 9-(acetyloxy)-3a,4,5,6,7,8,9,11a-octahydro-7-hydroxy-10-methyl-3,6-bis(methylene)-, (3aS,7R,9S,10E,11aR)-