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-[2-(4-chlorophenyl)sulfonyl-2-pyridin-3-ylethyl]-2-(1H-indol-3-yl)acetamide using the IUPAC nomenclature.
user
C23H20ClN3O3S
assistant