InChI=1S/C21H32O13/c1-7-8-2-3-21(4-8,17(7)28)6-31-20-16(12(25)10(23)9(5-22)32-20)34-19-14(27)11(24)13(26)15(33-19)18(29)30/h7-16,19-20,22-27H,2-6H2,1H3,(H,29,30)