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 N-[1-(butylamino)-1-oxo-3-phenylpropan-2-yl]-4-(2-methoxy-N-methylsulfonylanilino)-N-[(4-methylphenyl)methyl]butanamide .
user
C33H43N3O5S
assistant