InChI=1/C17H16N2O4/c1-22-13-4-3-5-14(23-2)16(13)17(21)18-11-6-7-12-10(8-11)9-15(20)19-12/h3-8H,9H2,1-2H3,(H,18,21)(H,19,20)/f/h18-19H	351B31F999399355