You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
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Translate the chemical IUPAC name 7-[5-chloro-1-(1-cyclopropylpyrazol-4-yl)indazol-6-yl]-2-oxa-7-azaspiro[3.5]nonane into its molecular formula.
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C20H22ClN5O
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