InChI=1/C20H18N4O4/c1-2-24-15-8-7-12(10-14(15)21-20(24)26)17-22-18(28-23-17)13-9-11-5-3-4-6-16(11)27-19(13)25/h3-10,17-18,22-23H,2H2,1H3,(H,21,26)/t17-,18-/m1/s1/f/h21H	726DAAAF1BDF201B