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