InChI=1/C14H13N3O4/c1-9-6-7-13(11(8-9)17(19)20)21-12-5-3-2-4-10(12)14(15)16-18/h2-8,18H,1H3,(H2,15,16)/f/h15H2/b16-14-	58C4A818001A883B