You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
2-[3-[1-(2,2-dimethylpropyl)-3-methyl-2-oxoimidazo[4,5-b]pyridin-5-yl]phenoxy]pyridine-3-carbonitrile is the IUPAC name of a molecule. Please give its molecular formula.
user
C24H23N5O2
assistant