InChI=1S/C20H19N4O3/c1-13-23(9-10-27-2)17-18(24(13)12-14-11-21-7-8-22-14)20(26)16-6-4-3-5-15(16)19(17)25/h3-8,11H,9-10,12H2,1-2H3/q+1