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Name the molecular formula for the molecule established as 1-[2-(3-fluoroazetidin-1-yl)-2-oxoethyl]-6-[4-fluoro-3-(trifluoromethyl)phenyl]-3-methylimidazo[4,5-b]pyridin-2-one using the IUPAC nomenclature.
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C19H15F5N4O2
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