You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
tert-butyl 2-[(2S,3R,4S)-4-(3-chloro-2-fluorophenyl)-3-(4-chloro-2-fluorophenyl)-2-(2,2-dimethylpropyl)-3-(methylamino)pyrrolidin-1-yl]acetate The above is the IUPAC name of a molecule. Write its molecular formula.
user
C28H36Cl2F2N2O2
assistant