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 2-(1,4-dioxa-8-azaspiro[4.5]decan-8-yl)-N-(4-ethyl-5-methyl-1,3-thiazol-2-yl)acetamide is given. What is its corresponding molecular formula?
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C15H23N3O3S
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