You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
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8-[4-chloro-6-fluoro-3-methyl-2-(2-methylprop-2-enyl)phenyl]-5-fluoroimidazo[1,2-a]pyrimidin-7-one is the IUPAC name of a molecule. Please give its molecular formula.
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C17H14ClF2N3O
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