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 4-[2-[(4-chlorobenzoyl)-(2-methoxyethyl)amino]acetyl]-3,5-dimethyl-1H-pyrrole-2-carboxylate into molecular formula.
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C20H23ClN2O5
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