InChI=1/C18H17N5O/c1-13-19-9-8-17(21-13)15-4-3-5-16(10-15)22-18(24)7-6-14-11-20-23(2)12-14/h3-12H,1-2H3,(H,22,24)/b7-6+/f/h22H DD8512542CE0CD42