You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
What is the molecular formula of the molecule 2-[2-[2-[[(1,6-dimethylpyrazolo[3,4-d]pyrimidin-4-yl)amino]methyl]piperidin-1-yl]ethyl]-7,8-dihydro-5H-pyrano[4,3-c]pyridazin-3-one ?
user
C22H30N8O2
assistant