You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
N-[(1R)-1-[1-[2-(3-methoxyphenoxy)ethyl]benzimidazol-2-yl]ethyl]furan-2-carboxamide is the IUPAC name of a molecule. Please give its molecular formula.
user
C23H23N3O4
assistant