InChI=1/C18H16N4O2/c1-3-24-13-7-5-4-6-12(13)16-20-17-15(18(23)21-16)19-14-10-11(2)8-9-22(14)17/h4-10H,3H2,1-2H3,(H,20,21,23)/f/h21H 91735789781D15F7