You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
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Convert the IUPAC name of a molecule 9-prop-2-enyl-2-(1H-pyrrole-2-carbonyl)-1,3,4,6,7,8,10,10a-octahydropyrazino[1,2-a][1,4]diazepine-7-carboxylic acid;2,2,2-trifluoroacetic acid into molecular formula.
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C21H26F6N4O7
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