You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
methyl (3R,4S)-1-methyl-2-oxo-4-[4-(trifluoromethyl)phenyl]pyrrolidine-3-carboxylate The above is the IUPAC name of a molecule. Write its molecular formula.
user
C14H14F3NO3
assistant