InChI=1/C18H18N8O/c19-16-21-17(22-18-20-15(23-26(16)18)14-7-4-12-27-14)25-10-8-24(9-11-25)13-5-2-1-3-6-13/h1-7,12H,8-11H2,(H2,19,20,21,22,23)/f/h19,21H 7B6293014D89E10A