You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Can you give the molecular formula of the molecule 2-amino-N-[1-(5-cyanopyridin-2-yl)piperidin-4-yl]-5-cyclopropylpyrazolo[1,5-a]pyrimidine-3-carboxamide ?
user
C21H22N8O
assistant