InChI=1/C15H16N4O4/c20-12-4-10(6-16-8-12)14(22)18-2-1-3-19-15(23)11-5-13(21)9-17-7-11/h4-9,20-21H,1-3H2,(H,18,22)(H,19,23)/f/h20-21h,16-19H 4292D33B604769AE