InChI=1S/C18H17N5O2/c19-17(24)15-8-4-7-14(9-15)10-20-18(25)16-12-23(22-21-16)11-13-5-2-1-3-6-13/h1-9,12H,10-11H2,(H2,19,24)(H,20,25)