InChI=1S/C22H26N2O9/c1-21(32)7-4-5-10(25)15(26)11(7)16(27)12-8(21)6-9-14(24(2)3)17(28)13(20(23)31)19(30)22(9,33)18(12)29/h4-5,8-9,13-14,17,25-26,28-29,32-33H,6H2,1-3H3,(H2,23,31)/t8?,9?,13?,14?,17?,21-,22+/m1/s1