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 1-(3,5-dimethyl-1,2-oxazol-4-yl)-3-[(1S)-1-(5-ethylfuran-2-yl)-2-methoxyethyl]urea is given. What is its corresponding molecular formula?
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C15H21N3O4
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