InChI=1/C21H18N4O3/c1-25-19-13(12-22-21(24-19)23-14-7-4-3-5-8-14)11-15(20(25)27)18-16(26)9-6-10-17(18)28-2/h3-12,26H,1-2H3,(H,22,23,24)/f/h23H 39492D8C43D3ACB6