InChI=1/C16H14N4O3/c1-9-6-7-13(15-12(9)8-17-19-15)18-16(21)11-4-3-5-14(10(11)2)20(22)23/h3-8H,1-2H3,(H,17,19)(H,18,21)/f/h18-19H 132F2EBD7751D20C