InChI=1/C14H16N4O4/c15-7-10-13(12-2-1-5-22-12)18(17-16-10)8-3-4-11(19)9(6-8)14(20)21/h3-4,6,12,19H,1-2,5,7,15H2,(H,20,21)/t12-/m1/s1/f/h15H 06202B76F52E53DC