InChI=1/C19H19N5O2/c1-14(25)16-2-4-17(5-3-16)22-19(26)24-10-8-23(9-11-24)18-12-15(13-20)6-7-21-18/h2-7,12H,8-11H2,1H3,(H,22,26)/f/h22H 5D132BA143BBEE8D