You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Convert the IUPAC name of a molecule methyl (4Z)-4-[(3-chlorophenyl)methylidene]-1-[2-(4-methoxyphenyl)ethyl]-2-methyl-5-oxopyrrole-3-carboxylate into molecular formula.
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C23H22ClNO4
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