InChI=1/C18H15N5O2/c1-11-5-3-6-12(2)16(11)21-18-15-9-19-10-22(15)17-13(20-18)7-4-8-14(17)23(24)25/h3-10H,1-2H3,(H,20,21)/f/h21H 423B1870C401CB64