You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
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For the molecule named ditert-butyl (10R)-2-oxo-8-[(E)-2-phenylethenyl]-1,4-diazatricyclo[4.3.1.03,10]dec-8-ene-4,9-dicarboxylate by IUPAC nomenclature, provide its molecular formula.
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C26H32N2O5
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