You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
ethyl 6-[4-[2-(5,6-difluorobenzimidazol-1-yl)-3-methylbutanoyl]-1,4-diazepan-1-yl]pyridine-3-carboxylate The above is the IUPAC name of a molecule. Write its molecular formula.
user
C25H29F2N5O3
assistant