InChI=1/C15H16FNO4/c1-9-11-6-10(8-17-2-4-20-5-3-17)7-12(16)14(11)21-13(9)15(18)19/h6-7H,2-5,8H2,1H3,(H,18,19)/p-1/fC15H15FNO4/q-1 F506CD0E175960F6