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)-N-[(2R)-butan-2-yl]-2-[[2-(N-(4-chlorophenyl)sulfonyl-3,4-dimethylanilino)acetyl]-[(4-fluorophenyl)methyl]amino]butanamide .
user
C31H37ClFN3O4S
assistant