You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
1-[3-[(4-fluorophenyl)methyl]-3,6-diazabicyclo[3.2.2]nonan-6-yl]-2-(tetrazol-1-yl)ethanone The above is the IUPAC name of a molecule. Write its molecular formula.
user
C17H21FN6O
assistant