InChI=1S/C21H32O8/c1-8-5-6-10-13(20(10,2)3)12-9(8)7-11(22)21(12,4)29-19-16(25)14(23)15(24)17(28-19)18(26)27/h10-17,19,22-25H,5-7H2,1-4H3,(H,26,27)