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 4-[benzenesulfonyl(methyl)amino]-N-[(2,6-dichlorophenyl)methyl]-N-[1-(methylamino)-1-oxopropan-2-yl]butanamide .
user
C22H27Cl2N3O4S
assistant