You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Can you give the molecular formula of the molecule 1-[4-[2-(4-cyclobutylpiperazin-1-yl)-2-oxoethyl]piperazin-1-yl]-2-(2,6-dichlorophenyl)ethanone ?
user
C22H30Cl2N4O2
assistant