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 2-[amino(cyclopropyl)methyl]-8-(6-fluoropyridin-3-yl)-4,5-dihydro-1H-pyrrolo[2,3-f]isoquinoline-3-carboxylic acid into molecular formula.
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C21H19FN4O2
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