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 (3aS,7aR)-5-[[1-(2-fluorophenyl)-3-methylpyrazol-4-yl]methyl]-1-(2-methoxyethyl)-3,3a,4,6,7,7a-hexahydroimidazo[4,5-c]pyridin-2-one into its molecular formula.
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C20H26FN5O2
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