InChI=1S/C19H18N6O7/c1-25-14-13(17(29)24-19(25)31)21-11(7-20-14)15(27)23-12(8-26)16(28)22-10-6-4-3-5-9(10)18(30)32-2/h3-7,12,26H,8H2,1-2H3,(H,22,28)(H,23,27)(H,24,29,31)/t12-/m0/s1