InChI=1/C19H19N5O/c1-12-8-9-15(13(2)10-12)21-18(20)24-19-22-16(11-17(25)23-19)14-6-4-3-5-7-14/h3-11H,1-2H3,(H4,20,21,22,23,24,25)/f/h21-22H,20H2 DBBBC59F2874BBA3