You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
What is the molecular formula of the molecule 6-[(2R,5R)-1-[4-(4-fluoro-4-phenylpiperidin-1-yl)phenyl]-5-[2-[(2S)-pyrrolidin-2-yl]-3H-benzimidazol-5-yl]pyrrolidin-2-yl]-2-[(2S)-pyrrolidin-2-yl]-1H-benzimidazole ?
user
C43H47FN8
assistant