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 (4R)-4-(3,4-dimethoxyphenyl)-N-(3-ethoxypropyl)-4,6-dihydropyrrolo[1,2-a][1,4]benzodiazepine-5-carboxamide is given. What is its corresponding molecular formula?
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C26H31N3O4
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