InChI=1/C19H17N5O2/c1-12-7-8-13(25)9-15(12)21-17-10-18(26-2)23-19(22-17)24-11-20-14-5-3-4-6-16(14)24/h3-11,25H,1-2H3,(H,21,22,23)/f/h21H 5A3F1762CF6B6FFE