InChI=1/C19H20N6O/c1-14-22-23-24-25(14)17-10-5-9-16(13-17)20-18(26)21-19(11-6-12-19)15-7-3-2-4-8-15/h2-5,7-10,13H,6,11-12H2,1H3,(H2,20,21,26)/f/h20-21H 955FB5B7F950AADE