You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Name the molecular formula for the molecule established as 2-[2-(4-chloroanilino)-2-oxoethyl]sulfonyl-N-[4-(dimethylsulfamoyl)phenyl]butanamide using the IUPAC nomenclature.
user
C20H24ClN3O6S2
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