You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
(E)-2-cyano-3-[5-(2-methyl-4-nitrophenyl)furan-2-yl]-N-(3-methylphenyl)prop-2-enamide The above is the IUPAC name of a molecule. Write its molecular formula.
user
C22H17N3O4
assistant