You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
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What is the molecular formula of the molecule N-[(2R)-1-(3,4-diaminophenoxy)but-3-en-2-yl]-2-oxo-1-[(3,4,5-trifluorophenyl)methyl]pyridine-3-carboxamide ?
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C23H21F3N4O3
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