You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Please write the molecular formula of the molecule 1-methyl-6-[[4-(2-methylpyrazol-3-yl)piperidin-1-yl]methyl]-5H-pyrazolo[3,4-d]pyrimidin-4-one .
user
C16H21N7O
assistant