You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
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For the molecule named (2R,6R)-2,4-dimethyl-6-[5-[(3-methyl-4-phenylpyrazol-1-yl)methyl]-1,3,4-oxadiazol-2-yl]morpholine by IUPAC nomenclature, provide its molecular formula.
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C19H23N5O2
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