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 (6R,7S)-7-chloro-4-(dimethylaminomethylidene)-3-methyl-5,5,8-trioxo-5lambda6-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylate is given. What is its corresponding molecular formula?
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C15H21ClN2O5S
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