You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Provide the molecular formula for the IUPAC named substance 1-[4-(2-methoxyphenyl)piperazin-1-yl]-2-[4-(4-methoxyphenyl)piperazin-1-yl]ethanone .
user
C24H32N4O3
assistant