InChI=1/C20H20N4/c1-3-7-17(8-4-1)18-11-13-23(14-12-18)15-19-16-24(22-21-19)20-9-5-2-6-10-20/h1-11,16H,12-15H2/p+1/fC20H21N4/h23H/q+1 2357D4E6C9B5ACE4