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1-(2,6-二氟-3-吡啶基)乙酮
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tert-butyl 6-fluoro-3-methylpyrazolo[3,4-b]pyridine-1-carboxylate
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6-氟-3-甲基-1H-吡唑并[3,4-B]吡啶
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二碳酸二叔丁酯