InChI=1/C20H17N3O4/c1-12-3-5-15-16(7-12)23-20(22-15)14(10-21)8-13-4-6-17(18(9-13)26-2)27-11-19(24)25/h3-9H,11H2,1-2H3,(H,22,23)(H,24,25)/p-1/b14-8+/fC20H16N3O4/h23H/q-1 83A50078415E31D2