You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
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For the molecule named 6-(4,4-dimethylpent-2-ynyl)-6-azaspiro[2.5]octane;1-(4,4-dimethylpent-2-ynyl)azepane;1-(4,4-dimethylpent-2-ynyl)-4-fluoro-4-methylpiperidine;1-(4,4-dimethylpent-2-ynyl)-4-methoxypiperidine;1-(4,4-dimethylpent-2-ynyl)-4-methylpiperidine by IUPAC nomenclature, provide its molecular formula.
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C79H137FN6O
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