InChI=1S/C21H32O8/c1-10-5-6-12-20(2,3)13(7-8-21(12,4)11(10)9-22)28-19-16(25)14(23)15(24)17(29-19)18(26)27/h9,11-17,19,23-25H,1,5-8H2,2-4H3,(H,26,27)