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 (1R,4R,5R,8S)-3,10-dioxo-4-[(2-phenylacetyl)amino]-11-oxa-6-thia-2-azatricyclo[6.3.0.02,5]undecane-1-carboxylic acid is given. What is its corresponding molecular formula?
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C17H16N2O6S
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