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 (E)-but-2-enedioic acid;(5S)-3-(2-methylpropyl)-1,5-dipropyl-3,7-diazabicyclo[3.3.1]nonan-9-ol is given. What is its corresponding molecular formula?
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C21H38N2O5
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