InChI=1/C19H20N6O/c1-12-5-7-13(8-6-12)9-10-21-19-23-16(20)15-18(24-19)25(2)17(22-15)14-4-3-11-26-14/h3-8,11H,9-10H2,1-2H3,(H3,20,21,23,24)/f/h21H,20H2 1573358CB6EFBC8B