You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Convert the IUPAC name of a molecule 6-[[1-[(1S)-1-aminoethyl]cyclobutyl]amino]-5-fluoro-2-[3-(triazol-2-yl)anilino]pyridine-3-carboxamide into molecular formula.
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C20H23FN8O
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