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 N-[(1-ethylimidazol-2-yl)methyl]-6-methoxy-N,3-dimethyl-1-benzofuran-2-carboxamide using the IUPAC nomenclature.
user
C18H21N3O3
assistant