InChI=1S/C21H34O8/c1-10-6-5-7-12-13(22)8-11(9-21(10,12)4)20(2,3)29-19-16(25)14(23)15(24)17(28-19)18(26)27/h7,10-11,13-17,19,22-25H,5-6,8-9H2,1-4H3,(H,26,27)