You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Convert the IUPAC name of a molecule N-[4-(3-chloro-4-fluoroanilino)-3-cyano-7-ethoxyquinolin-6-yl]-4-[(1-ethyltriazol-4-yl)methylamino]but-2-enamide into molecular formula.
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C27H26ClFN8O2
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