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 (6S)-N-(2-chlorophenyl)-2-(2-methoxyethyl)-3-oxo-2,8-diazaspiro[5.5]undecane-8-carboxamide is given. What is its corresponding molecular formula?
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C19H26ClN3O3
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