You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
(1S,5S)-3-hydroxy-N-[(1R)-1-[4-(trifluoromethyl)phenyl]ethyl]-8-azabicyclo[3.2.1]octane-8-carboxamide is the IUPAC name of a molecule. Please give its molecular formula.
user
C17H21F3N2O2
assistant