InChI=1S/C21H34O8/c1-11-5-4-6-12-7-8-13(9-20(11,12)2)21(3,27)10-28-19-16(24)14(22)15(23)17(29-19)18(25)26/h6,11,13-17,19,22-24,27H,4-5,7-10H2,1-3H3,(H,25,26)