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 [9-(furan-2-ylmethyl)-1-oxa-4,9-diazaspiro[5.5]undecan-4-yl]-pyrazin-2-ylmethanone;2,2,2-trifluoroacetic acid is given. What is its corresponding molecular formula?
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C20H23F3N4O5
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