You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
[(3R)-3-(4-methyl-1H-benzimidazol-2-yl)piperidin-1-yl]-(5-phenyl-1H-pyrazol-4-yl)methanone The above is the IUPAC name of a molecule. Write its molecular formula.
user
C23H23N5O
assistant