You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
1-[2-[3-(dimethylamino)azetidin-1-yl]-1,3-oxazol-4-yl]-2-[7-(1-methylpyrazol-4-yl)quinazolin-2-yl]ethanone The above is the IUPAC name of a molecule. Write its molecular formula.
user
C22H23N7O2
assistant