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 (2R)-2-[4-(2,3-dihydro-1-benzofuran-5-ylmethyl)piperazin-1-yl]-N-ethyl-N-phenylpropanamide .
user
C24H31N3O2
assistant