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 (2,6-dimethoxyphenyl)-[2-(6-fluoro-1H-benzimidazol-2-yl)pyrrolidin-1-yl]methanone using the IUPAC nomenclature.
user
C20H20FN3O3
assistant