InChI=1/C19H18N6O/c1-12-9-13(2)25(24-12)19-22-17(11-18(23-19)21-14(3)26)16-6-4-5-15(10-16)7-8-20/h4-6,9-11H,7H2,1-3H3,(H,21,22,23,26)/f/h21H 18CB0E69D33DC2CA