You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
6-[4-[2-[5-(2,2-dimethylbutyl)-1H-imidazol-2-yl]ethyl]phenyl]-1H-pyridin-2-one The above is the IUPAC name of a molecule. Write its molecular formula.
user
C22H27N3O
assistant