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-[(4-chlorophenyl)methyl-[2-[(2,4-dichlorophenyl)methylsulfanyl]acetyl]amino]-3-phenylpropanamide .
user
C29H31Cl3N2O2S
assistant