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 8-[(2R)-2-[2,6-difluoro-4-(tetrazol-1-yl)phenyl]-2-hydroxyethyl]-2-(4-methyl-5-oxo-2H-furan-3-yl)-2-aza-8-azoniaspiro[4.5]decan-1-one is given. What is its corresponding molecular formula?
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C22H25F2N6O4+
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