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 (2R)-2-[[2-(3-chloro-N-(4-methylphenyl)sulfonylanilino)acetyl]-[(3,4-dichlorophenyl)methyl]amino]-N-ethyl-3-phenylpropanamide .
user
C33H32Cl3N3O4S
assistant