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-[1-[2-[6-(5-pyrazolidin-3-ylpyridin-2-yl)oxy-1-benzofuran-3-yl]ethyl]piperidin-4-yl]pyrrolidin-2-one .
user
C27H33N5O3
assistant