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 (5R)-3-(3,4-dimethoxyphenyl)-N-propyl-4,5-dihydro-1,2-oxazole-5-carboxamide is given. What is its corresponding molecular formula?
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C15H20N2O4
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