InChI=1/C20H20N4O/c21-13-16-4-3-7-19(12-16)24-11-10-23(20(24)25)9-8-22-14-17-5-1-2-6-18(17)15-22/h1-7,12H,8-11,14-15H2/p+1/fC20H21N4O/h22H/q+1 89788C6573E54352