InChI=1/C13H16N4O4/c18-13(21-16-12-7-2-1-3-8-14-12)15-10-5-4-6-11(9-10)17(19)20/h4-6,9H,1-3,7-8H2,(H,14,16)(H,15,18)/f/h14-15H/b16-12-	BC497BB773CDB77C