化学合成。
化学合成
合成路线 1（1. 合成：17282-40-5）
产率：98%
合成条件：at 20℃; for 2 h;
实验步骤：实施例3由化学式11表示的化合物的合成根据以下反应方案3合成由化学式11表示的化合物。第一步：合成中间产物（G）105.0g（628.4mmol）溴乙酸乙酯和994.67g（12.6mol） 将吡啶悬浮在溶剂中，使悬浮的溶液在室温下反应2小时。 然后，向其中加入1,000ml二乙醚使得到的反应物沉淀。 将沉淀的固体化合物过滤，分离，用二乙醚清洗，干燥，得到152.3g淡黄色固体中间产物（G）（产率：98％）。
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