You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
2-[(3S)-3-[3-chloro-N-[(2-chlorophenyl)methyl]-4-isocyanoanilino]pyrrolidin-1-yl]-N,N-dimethylacetamide The above is the IUPAC name of a molecule. Write its molecular formula.
user
C22H24Cl2N4O
assistant