InChI=1/C14H14N4O4/c19-12-14(5-1-2-6-14)16-13(20)18(12)8-10-15-11(22-17-10)9-4-3-7-21-9/h3-4,7H,1-2,5-6,8H2,(H,16,20)/f/h16H D0D721A84A22724D