You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
(Z)-2-cyano-3-[3-methoxy-4-[2-(4-methoxyanilino)-2-oxoethoxy]phenyl]-N-(3-nitrophenyl)prop-2-enamide The above is the IUPAC name of a molecule. Write its molecular formula.
user
C26H22N4O7
assistant