You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
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Convert the IUPAC name of a molecule tert-butyl (1R,7S)-3-[[tert-butyl(dimethyl)silyl]oxymethyl]-5-oxo-4-azatricyclo[5.2.1.02,6]dec-8-ene-4-carboxylate into molecular formula.
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C21H35NO4Si
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