InChI=1/C16H11FN2O5/c17-10-3-6-13-12(7-10)16(22,15(21)18-13)8-14(20)9-1-4-11(5-2-9)19(23)24/h1-7,22H,8H2,(H,18,21)/t16-/m0/s1/f/h18H 8CD3CE71F0041ABB