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 (1R,6S,8R)-1'-methylspiro[11-oxa-3-azatricyclo[6.2.1.01,6]undec-9-ene-4,4'-piperidine] is given. What is its corresponding molecular formula?
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C14H22N2O
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