You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
(2-cyclohexyl-4-phenylpiperidin-1-yl)-(6-fluorospiro[2,4-dihydro-1H-3-benzoxepine-5,4'-pyrrolidine]-3'-yl)methanone The above is the IUPAC name of a molecule. Write its molecular formula.
user
C31H39FN2O2
assistant