InChI=1/C19H17N5O2/c1-25-14-5-6-16-17(8-14)23-19(22-16)18-13(10-21-24-18)4-3-12-7-15(26-2)11-20-9-12/h3-11H,1-2H3,(H,21,24)(H,22,23)/b4-3+/f/h21,23H F5A554242EE85053