You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Please write the molecular formula of the molecule (2S)-2-[(3-bromophenyl)methyl-[2-(3-chloro-4-methoxy-N-(4-methylphenyl)sulfonylanilino)acetyl]amino]-N-ethylpropanamide .
user
C28H31BrClN3O5S
assistant