InChI=1S/C22H26N2O9/c1-20(31)8-5-4-6-10(25)11(8)14(26)12-9(20)7-21(32)16(24(2)3)15(27)13(19(23)30)18(29)22(21,33)17(12)28/h4-6,9,13,15-16,25,27-28,31-33H,7H2,1-3H3,(H2,23,30)/t9?,13?,15?,16?,20-,21?,22+/m1/s1