You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Provide the molecular formula for the IUPAC named substance 5-[4,4-bis(trifluoromethyl)-2-[4-(trifluoromethyl)phenyl]cyclopenten-1-yl]-2-methylsulfonylpyridine .
user
C20H14F9NO2S
assistant