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 (2S)-1-[4-[6-benzyl-1-(4-fluorophenyl)-3-methylpyrazolo[3,4-d]pyrimidin-4-yl]piperazin-1-yl]-2-chloro-2-phenylethanone ?
user
C31H28ClFN6O
assistant