InChI=1/C17H17N3O4/c18-12-1-2-15-14(8-12)20(9-13(22)10-21)17(23)16(24-15)7-11-3-5-19-6-4-11/h1-8,13,21-22H,9-10,18H2/b16-7+/t13-/m0/s1 597EB3CA02AD6E83