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 propan-2-yl (4R)-2-amino-4-(2,4-difluorophenyl)-6-(hydroxymethyl)-8-oxo-4H-pyrano[3,2-b]pyran-3-carboxylate into its molecular formula.
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C19H17F2NO6
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