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 2,2,2-trifluoroethyl (2R,4R)-2-ethyl-4-[1-(4-methylsulfonylphenyl)-2-oxopyridin-4-yl]oxypiperidine-1-carboxylate .
user
C22H25F3N2O6S
assistant