InChI=1S/C21H34O8/c1-10(2)12-7-8-20(4,27)13-6-5-11(3)9-21(12,13)29-19-16(24)14(22)15(23)17(28-19)18(25)26/h10,12-17,19,22-24,27H,3,5-9H2,1-2,4H3,(H,25,26)