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 (4-methoxyphenyl)methyl (6R)-3-(chloromethyl)-7-[(2-hydroxy-5-nitrophenyl)methylideneamino]-8-oxo-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylate is given. What is its corresponding molecular formula?
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C23H20ClN3O7S
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