You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
6-[[3-(benzylsulfonylcarbamoyl)cyclopentyl]amino]-5-cyano-2-(trifluoromethyl)pyridine-3-carboxylate The above is the IUPAC name of a molecule. Write its molecular formula.
user
C21H18F3N4O5S-
assistant