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 (2R)-N-butyl-2-[[2-(2,5-dichloro-N-methylsulfonylanilino)acetyl]-[(3-methoxyphenyl)methyl]amino]butanamide .
user
C25H33Cl2N3O5S
assistant