You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Can you give the molecular formula of the molecule (2,5-difluorophenyl)-[(3R)-1-[(6-fluoro-1H-benzimidazol-2-yl)methyl]piperidin-3-yl]methanone ?
user
C20H18F3N3O
assistant