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 (1R,2S)-1-(5-chloropyrimidin-2-yl)-1-methoxy-N-[4-[(2R)-1-methoxypropan-2-yl]-5-(6-methoxypyridin-2-yl)-1,2,4-triazol-3-yl]propane-2-sulfonamide into molecular formula.
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C20H26ClN7O5S
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