You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Can you give the molecular formula of the molecule (2R)-N-[(2S)-butan-2-yl]-2-[[2-(5-chloro-2-methoxy-N-methylsulfonylanilino)acetyl]-[(4-methoxyphenyl)methyl]amino]butanamide ?
user
C26H36ClN3O6S
assistant