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 N-[4-chloro-2-(trifluoromethyl)phenyl]-2-(2-methyl-5-piperidin-1-ylsulfonylanilino)acetamide using the IUPAC nomenclature.
user
C21H23ClF3N3O3S
assistant