InChI=1/C16H15N3O4/c1-10-13(16(21)17-2)4-3-5-14(10)18-9-11-8-12(19(22)23)6-7-15(11)20/h3-9,20H,1-2H3,(H,17,21)/p-1/fC16H14N3O4/h20h,17H/q-1 653E6E238892835E