The α - chloropyridine - N - oxidining reaction is the key reaction for synthesis of N - oxide - 2 - mercaptopyridine zinc salt ( ZPT ).

α - 氯代吡啶 -N- 氧化反应是生产吡啶硫酮锌 ( ZPT ) 的关键反应.

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These results suggest that it is safe to use ZPT externally as an antifungal drug.

结果表明ZPT外用是安全的.

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