InChI=1S/C22H26N2O9/c1-7-8-5-4-6-9(25)11(8)15(26)12-10(7)16(27)13-14(24(2)3)18(29)22(33,20(23)31)19(30)21(13,32)17(12)28/h4-7,10,13-14,16,18,25,27-29,32-33H,1-3H3,(H2,23,31)/t7?,10?,13?,14?,16?,18?,21-,22?/m0/s1