You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
tert-butyl (2S,4R)-4-fluoro-2-[(5-fluoropyridin-2-yl)carbamoyl]pyrrolidine-1-carboxylate The above is the IUPAC name of a molecule. Write its molecular formula.
user
C15H19F2N3O3
assistant