You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
5-[6-chloro-2-(2,6-diazaspiro[3.3]heptan-2-yl)-1-[(4-fluoro-3,5-dimethylphenyl)methyl]benzimidazol-4-yl]-4-methylpyrimidin-2-amine The above is the IUPAC name of a molecule. Write its molecular formula.
user
C26H27ClFN7
assistant