You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
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Under IUPAC nomenclature, a molecule named methyl 2-chloro-5-[[(2R)-2-(3,5-dimethyl-N-methylsulfonylanilino)propanoyl]amino]benzoate is given. What is its corresponding molecular formula?
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C20H23ClN2O5S
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