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-[3-(4-methoxyphenyl)propanoyl]piperazin-1-yl]-4-oxobutyl]-1,3-diazaspiro[4.4]nonane-2,4-dione .
user
C25H34N4O5
assistant