You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Can you give the molecular formula of the molecule (5-ethyl-1,3-oxazol-4-yl)-[3-[2-[2-(trifluoromethyl)phenyl]ethyl]piperidin-1-yl]methanone ?
user
C20H23F3N2O2
assistant