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 5-(3-chlorobenzoyl)-6-hydroxy-4-methyl-2-oxo-1-(2-phenylethyl)pyridine-3-carbonitrile is given. What is its corresponding molecular formula?
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C22H17ClN2O3
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