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-[[2-[N-(benzenesulfonyl)-4-chloro-2-methylanilino]acetyl]-[(3-methylphenyl)methyl]amino]-N-[(2S)-butan-2-yl]butanamide .
user
C31H38ClN3O4S
assistant