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Name the molecular formula for the molecule established as [(3aR,6aS)-2-methyl-1,3,3a,4,6,6a-hexahydropyrrolo[3,4-c]pyrrol-5-yl]-(7-fluoroquinoxalin-6-yl)methanone using the IUPAC nomenclature.
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C16H17FN4O
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