InChI=1/C19H20N4O/c20-18(24)15-2-1-3-16-17(15)23-19(22-16)14-6-4-12(5-7-14)13-8-10-21-11-9-13/h1-7,13,21H,8-11H2,(H2,20,24)(H,22,23)/p+1/fC19H21N4O/h21-22H,20H2/q+1 A36B2542CE19E922