InChI=1S/C21H34O8/c1-10-7-13(22)8-11-5-6-12(9-21(10,11)4)20(2,3)29-19-16(25)14(23)15(24)17(28-19)18(26)27/h8,10,12-17,19,22-25H,5-7,9H2,1-4H3,(H,26,27)