You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
4-[3-(3,5-difluorophenyl)-1,2,4-oxadiazol-5-yl]-N-ethyloxolan-3-amine The above is the IUPAC name of a molecule. Write its molecular formula.
user
C14H15F2N3O2
assistant