InChI=1/C19H18N4O/c1-12-5-4-6-13(9-12)17-18(21-11-20-17)14-7-8-15-16(10-14)23(3)19(24)22(15)2/h4-11H,1-3H3,(H,20,21)/f/h21H 9F334C3458E06293