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-[3-amino-2-(dimethylamino)azetidin-1-yl]-1-tert-butyl-7,9-difluoro-4-oxobenzo[b][1,8]naphthyridine-3-carboxylic acid is given. What is its corresponding molecular formula?
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C22H25F2N5O3
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