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-[[(3R,4R)-3-aminooxan-4-yl]amino]-2-[(1-ethylindazol-4-yl)amino]-5-fluoropyridine-3-carboxamide into molecular formula.
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C20H24FN7O2
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