You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
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Under IUPAC nomenclature, a molecule named (E)-3-(2,4-dichlorophenyl)-N-(imidazo[1,2-a]pyridin-2-ylmethyl)prop-2-enamide is given. What is its corresponding molecular formula?
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C17H13Cl2N3O
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