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 N-[2-(4-ethoxyphenoxy)phenyl]-3-(3-thiophen-3-yl-1,2,4-oxadiazol-5-yl)propanamide .
user
C23H21N3O4S
assistant