You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
N-[6-[[5-[3-cyano-6-(1-methylpyrazol-4-yl)pyrazolo[1,5-a]pyridin-4-yl]pyridin-2-yl]amino]-3-methylpiperidin-3-yl]-2-methylprop-2-enamide The above is the IUPAC name of a molecule. Write its molecular formula.
user
C27H29N9O
assistant