You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
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Translate the chemical IUPAC name (4,4-difluoro-2-methylcyclopentyl)-(7-fluoro-5-phenyl-6,7-dihydro-5H-pyrrolo[1,2-b][1,2,4]triazol-2-yl)methanone into its molecular formula.
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C18H18F3N3O
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