You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
5-[(7R)-8-(4,4-difluorocyclohexyl)-7-methyl-6-oxo-2-(1H-pyrazolo[3,4-b]pyridin-5-ylamino)-7H-pteridin-5-yl]-2-methoxybenzonitrile The above is the IUPAC name of a molecule. Write its molecular formula.
user
C27H25F2N9O2
assistant