InChI=1/C19H16N4O5/c1-19(2)27-16-8-3-13(9-17(16)28-19)21-18(24)12-10-20-22(11-12)14-4-6-15(7-5-14)23(25)26/h3-11H,1-2H3,(H,21,24)/f/h21H BD7CE3F0A9E37E6F