You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
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For the molecule named 4-carbamoyl-9-oxo-10-phenylmethoxy-4,5,8,10-tetrazatricyclo[6.2.1.02,6]undeca-2,5-diene-7-carboxylic acid by IUPAC nomenclature, provide its molecular formula.
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C16H15N5O5
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