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-[4-(6-benzyl-3-methyl-1-phenylpyrazolo[3,4-d]pyrimidin-4-yl)piperazin-1-yl]-2-phenylethanone .
user
C31H30N6O
assistant