You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
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For the molecule named (5-methylfuran-2-yl)-[2-(3-propyl-1,2,4-oxadiazol-5-yl)piperidin-1-yl]methanone by IUPAC nomenclature, provide its molecular formula.
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C16H21N3O3
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