You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
5-fluoro-3-[3-(2-methylimidazol-1-yl)propanoyl]-1H-pyrimidine-2,4-dione;5-fluoro-1-[3-(2-nitroimidazol-1-yl)propanoyl]pyrimidine-2,4-dione The above is the IUPAC name of a molecule. Write its molecular formula.
user
C21H19F2N9O8
assistant