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 (6S,7R)-7-amino-3-[(4-methyl-5-oxofuran-2-ylidene)methyl]-8-oxo-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylic acid is given. What is its corresponding molecular formula?
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C13H12N2O5S
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