InChI=1/C14H13N5O2/c1-8-3-5-10(6-4-8)16-17-12-13-15-9(2)7-11(20)19(13)18-14(12)21/h3-7,16H,1-2H3,(H,18,21)/b17-12-/f/h18H 91CEF2C103419375