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 (3-methoxyphenyl)methyl (7S)-3-(acetyloxymethyl)-7-methoxy-5,8-dioxo-5lambda4-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylate is given. What is its corresponding molecular formula?
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C19H21NO8S
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