InChI=1/C16H16N4O2/c1-19-12-7-8-13(22-2)18-15(12)20(10-5-6-10)14-11(16(19)21)4-3-9-17-14/h3-4,7-10H,5-6H2,1-2H3 C8B904433BB9E924