Provided is a method for preparing an alkynyl pyridine prolyl hydroxylase inhibitor. In particular, the method involved uses 3-substituted-5-bromopyridine-2-carboxylic acid protected by different protection groups as raw materials, and by means of condensation, Sonogashira coupling and deprotection, the target compound is obtained. The process reaction conditions are simple, and have no harsh reaction conditions, strong operability, and stable amplification.
提供了一种制备炔基
吡啶脯
氨酸羟化酶
抑制剂的方法。具体而言,所涉及的方法使用3-取代-5-
溴吡啶-2-
羧酸经过不同保护基保护作为原料,并通过缩合、Sonogashira偶联和去保护的手段得到目标化合物。该过程反应条件简单,没有严苛的反应条件,操作性强,且稳定可放大。