InChI=1/C21H20N4O3/c1-15(17-7-6-12-22-14-17)24(2)21(26)16-10-11-19(20(13-16)25(27)28)23-18-8-4-3-5-9-18/h3-15,23H,1-2H3/t15-/m1/s1 2706488AC9086A4A