You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Name the molecular formula for the molecule established as 2-[4-(2-oxo-2-pyrrolidin-1-ylethyl)piperazin-1-yl]-2-(6-phenylmethoxy-1H-indol-3-yl)acetic acid using the IUPAC nomenclature.
user
C27H32N4O4
assistant