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 9-[(2R)-2-[[(2R,4S)-4-(3-fluoro-5-methylphenyl)-2-oxo-1,3,2lambda5-dioxaphosphinan-2-yl]methoxy]propyl]purin-6-amine is given. What is its corresponding molecular formula?
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C19H23FN5O4P
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