You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
For the molecule named 1-(2,3-dihydro-1-benzofuran-4-yl)-2-[1-(2-methoxyethyl)imidazol-2-yl]imidazole by IUPAC nomenclature, provide its molecular formula.
user
C17H18N4O2
assistant