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-[(3R)-3-[[4-[6-[5-[(4S)-4-aminopentyl]-3-chloro-2-fluorophenyl]-2-oxo-7H-pyrrolo[2,3-d]pyrimidin-3-yl]phenyl]methylamino]-4-(ethylamino)butyl]guanidine into molecular formula.
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C31H41ClFN9O
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