InChI=1/C19H19N5O/c1-12-5-3-7-14(9-12)15-10-16(24-19(20)23-15)18(25)22-11-17-13(2)6-4-8-21-17/h3-10H,11H2,1-2H3,(H,22,25)(H2,20,23,24)/f/h22H,20H2 2A3E11A41F6F648A