You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Provide the molecular formula for the IUPAC named substance (2S)-2-[(3,4-dichlorophenyl)methyl-[2-(4-ethoxy-N-(4-methylphenyl)sulfonylanilino)acetyl]amino]-N-propylbutanamide .
user
C31H37Cl2N3O5S
assistant