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 tert-butyl (4S)-4-(4-chlorophenyl)-5-cyano-6-[2-(4-ethoxyanilino)-2-oxoethyl]sulfanyl-2-methyl-1,4-dihydropyridine-3-carboxylate is given. What is its corresponding molecular formula?
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C28H30ClN3O4S
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