You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
(2R)-N-tert-butyl-2-[4-[(2R,6S)-2,6-dimethylmorpholin-4-yl]-3-fluoroanilino]propanamide The above is the IUPAC name of a molecule. Write its molecular formula.
user
C19H30FN3O2
assistant