InChI=1/C21H20N4O3/c1-5-28-21(27)18-14(4)23-25-17-8-9-24(15-7-6-12(2)13(3)10-15)20(26)16(17)11-22-19(18)25/h6-11H,5H2,1-4H3 34FC68F553B0F0ED