You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
1-[4-[2-[(1-propan-2-ylpyrazolo[4,3-c]pyridin-6-yl)amino]-6-pyrrolidin-1-ylpyrimidin-4-yl]piperazin-1-yl]pent-4-yn-1-one is the IUPAC name of a molecule. Please give its molecular formula.
user
C26H33N9O
assistant