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)-N-butyl-2-[(2-chlorophenyl)methyl-[2-(2-methyl-N-methylsulfonyl-5-nitroanilino)acetyl]amino]-3-phenylpropanamide .
user
C30H35ClN4O6S
assistant