You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Translate the chemical IUPAC name methyl (4Z)-4-[(3-bromophenyl)methylidene]-1-(4-ethoxycarbonylphenyl)-2-methyl-5-oxopyrrole-3-carboxylate into its molecular formula.
user
C23H20BrNO5
assistant