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 4-[1-[(2-chlorobenzoyl)amino]-2-oxo-2-piperidin-1-ylethyl]-N-ethylpiperidine-1-carboxamide is given. What is its corresponding molecular formula?
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C22H31ClN4O3
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