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)-2-[[2-(4-bromo-3-methyl-N-methylsulfonylanilino)acetyl]-[(4-methylphenyl)methyl]amino]-N-[(2R)-butan-2-yl]propanamide .
user
C25H34BrN3O4S
assistant