化学合成。
化学合成
合成路线 1（1. 合成：26944-71-8）
产率：93%
合成条件：With hydrazine hydrate In ethanol; water at 115℃; for 18 h;
实验步骤：将市售的2,6-二溴吡啶（4.12g，16.6mmol）悬浮在乙醇（40mL）中，加入水合肼（10mL，97.6mmol）的水（50-60％）。 将混合物在115℃的沙浴中加热18小时。 除去溶剂并通过二氧化硅色谱法使用乙酸乙酯/正庚烷（60/40）纯化残余物，得到标题化合物，为灰白色固体（3.05g，93％）.1 H-NMR（400MHz， CDCl3）：。（TM）。= 7.33（t，1H），6.83（d，1H），6.67（d，1H），6.00（br-s，1H），3.00-3.33（br-s，2H）。
参考文献：
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