InChI=1/C17H13N3O6/c18-6-9-15(16-11(21)2-1-3-12(16)26-17(9)19)8-4-13-14(25-7-24-13)5-10(8)20(22)23/h4-5,15H,1-3,7,19H2/t15-/m0/s1 647BCB7A77B7F8A3