InChI=1/C14H16N4O4/c1-9-5-12(16-22-9)8-17(2)7-11-4-3-10(14(15)19)6-13(11)18(20)21/h3-6H,7-8H2,1-2H3,(H2,15,19)/f/h15H2 08587347F7D234B2