化学合成。
化学合成
合成路线 1（1. 合成：138343-75-6）
产率：86%
合成条件：at 20 - 58℃; for 4.50 h;
实验步骤：将二碳酸二叔丁酯（50.0g）的正己烷（55mL）溶液加热至58℃并搅拌。 向该溶液中滴加2-氨基吡啶啉（15.5g）的乙酸乙酯（20mL）溶液。 在58℃下加热3小时后，将其冷却至室温。 加入正己烷（30mL）后，搅拌1.5小时。 通过过滤收集沉积的沉淀物并干燥，得到25.8g（86％）标题化合物，为白色固体。 MS（FAB）m / z：209（M + H）+。
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