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 1,3-dimethyl-5-[2-(oxolan-3-yl)-3-[2-(trifluoromethoxy)ethyl]benzimidazol-5-yl]pyridin-2-one ?
user
C21H22F3N3O3
assistant