InChI=1/C19H18N4O4/c20-17(25)13-6-8-14(9-7-13)21-16(24)11-23-18(26)15(22-19(23)27)10-12-4-2-1-3-5-12/h1-9,15H,10-11H2,(H2,20,25)(H,21,24)(H,22,27)/t15-/m1/s1/f/h21-22H,20H2 0EA67DE9EAE00E07