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 3-chloro-7-[(2-methylpropan-2-yl)oxycarbonyl]-6,8-dihydro-5H-imidazo[1,2-a]pyrazine-2-carboxylate into its molecular formula.
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C12H15ClN3O4-
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