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 [4-(3-methylphenyl)piperazin-1-yl]-[1-(3-methyltriazolo[4,5-d]pyrimidin-7-yl)azetidin-3-yl]methanone .
user
C20H24N8O
assistant