You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
tert-butyl (1R,2S,4S)-2-[(2,2,2-trifluoroacetyl)amino]-7-azabicyclo[2.2.1]heptane-7-carboxylate is the IUPAC name of a molecule. Please give its molecular formula.
user
C13H19F3N2O3
assistant