You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
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Translate the chemical IUPAC name (11R)-11-(2-methylpropyl)-15-(oxane-4-carbonyl)-19-oxa-3,6,9,12,15-pentazatricyclo[18.3.1.02,6]tetracosa-1(24),2,4,20,22-pentaene-10,13-dione into its molecular formula.
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C28H39N5O5
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