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 1-[(5S)-8-oxabicyclo[3.2.1]octan-3-yl]-4-phenyl-3-piperidin-4-ylimidazolidin-2-one using the IUPAC nomenclature.
user
C21H29N3O2
assistant