You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Provide the molecular formula for the IUPAC named substance (Z)-3-(2-bromo-5-methoxy-4-prop-2-enoxyphenyl)-N-(4-bromophenyl)-2-cyanoprop-2-enamide .
user
C20H16Br2N2O3
assistant