You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
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Convert the IUPAC name of a molecule methyl (2R,3aS,4S,6R)-6-ethoxy-3a-methyl-4-phenyl-3,4,5,6-tetrahydro-2H-[1,2]oxazolo[2,3-b]oxazine-2-carboxylate into molecular formula.
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C17H23NO5
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