You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
(E)-2-cyano-3-[1-[2-(2-methoxyethylamino)-2-oxoethyl]indol-3-yl]-N-naphthalen-2-ylprop-2-enamide The above is the IUPAC name of a molecule. Write its molecular formula.
user
C27H24N4O3
assistant