InChI=1/C21H18N4O3/c1-3-25-19-16(8-5-9-22-19)21(27)24-18-14(12-26)11-17(23-20(18)25)13-6-4-7-15(10-13)28-2/h4-12H,3H2,1-2H3,(H,24,27)/f/h24H 3FF42C31047E82B9