You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
N-[1-[(1-cyanocyclopropyl)amino]-5,5-difluoro-1-oxo-5-pyridin-3-ylpentan-2-yl]-6-azaspiro[2.5]octane-6-carboxamide The above is the IUPAC name of a molecule. Write its molecular formula.
user
C22H27F2N5O2
assistant