InChI=1S/C22H26N2O9/c1-6-7-4-5-8(25)15(26)10(7)16(27)11-9(6)17(28)13-14(24(2)3)18(29)12(21(23)32)20(31)22(13,33)19(11)30/h4-6,9,12-14,17-18,25-26,28-30,33H,1-3H3,(H2,23,32)/t6?,9?,12?,13?,14?,17?,18?,22-/m0/s1