InChI=1S/C22H22N2O9/c1-7-8-5-4-6-9(25)11(8)14(26)12-10(7)15(27)16-21(32,17(12)28)18(29)13(20(23)31)19(30)22(16,33)24(2)3/h4-6,10,13,15-16,25,27-28,32-33H,1H2,2-3H3,(H2,23,31)/t10?,13?,15?,16?,21-,22?/m0/s1