You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
[(3S,4R)-6-cyano-1-[2-(dimethylamino)ethyl]-4-(4-methoxyphenyl)-2-oxo-4,5-dihydro-3H-1-benzazepin-3-yl] acetate is the IUPAC name of a molecule. Please give its molecular formula.
user
C24H27N3O4
assistant