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 [3-(2-chlorophenyl)-5-methyl-1,2-oxazol-4-yl]-(1-oxa-4-azaspiro[4.5]decan-4-yl)methanone is given. What is its corresponding molecular formula?
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C19H21ClN2O3
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