You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Translate the chemical IUPAC name [(2R,3R,4S,5R)-4-fluoro-5-(5-methyl-2,4-dioxopyrimidin-1-yl)-3-methylsulfonyloxyoxolan-2-yl]methyl benzoate into its molecular formula.
user
C18H19FN2O8S
assistant