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 3-[4-[4-[2-(2-chlorophenoxy)ethyl]piperazin-1-yl]-4-oxobutyl]-1,3-diazaspiro[4.4]nonane-2,4-dione .
user
C23H31ClN4O4
assistant