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 6-(1,3,4,6,7,8,9,9a-octahydropyrido[1,2-a]pyrazine-2-carbonyl)cyclohex-3-ene-1-carboxylic acid into its molecular formula.
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C16H24N2O3
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