InChI=1/C19H17N3/c1-3-13-6-9-17-15(10-13)19-16(11-20-17)18(21-22-19)14-7-4-12(2)5-8-14/h4-11H,3H2,1-2H3,(H,21,22)/f/h21H FD71C5218C7918C7