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 2-methyl-1-[4-[2-methyl-2-[4-(4-methylpiperazin-1-yl)piperidin-1-yl]propyl]piperazin-1-yl]propan-1-one .
user
C22H43N5O
assistant