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 (1R,3R)-3-[2-fluoro-5-[(3,4,5-trifluorophenyl)carbamoyl]phenyl]sulfanylcyclohexane-1-carboxylic acid .
user
C20H17F4NO3S
assistant