InChI=1/C19H20N4O/c1-12-5-7-17-15(9-12)16(10-13(2)21-17)19(24)22-18-8-6-14(11-20-18)23(3)4/h5-11H,1-4H3,(H,20,22,24)/f/h22H 1EBDED917AB87C3E