You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
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Convert the IUPAC name of a molecule 4-(5,7-dichloro-2,3-dihydro-1-benzofuran-4-yl)-5-(ethylideneamino)-6-ethynylpyrimidin-2-amine into molecular formula.
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C16H12Cl2N4O
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