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 N-butan-2-yl-2-[(2-chlorophenyl)methyl-[2-[(4-chlorophenyl)sulfonyl-methylamino]acetyl]amino]propanamide .
user
C23H29Cl2N3O4S
assistant