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