The present invention relates to preparation methods of a prostacyclin receptor agonist of 2-4-[N-(5,6-diphenylpyrazin-2-yl)-N-isopropylamino]butyloxy}-N-(methylsulfonyl)acetamide and its intermediates. These methods are simple and convenient to operate, environment-friendly and suitable for industrial production to obtain the product with good yield and high purity.
本发明涉及一种2-4-[N-(5,6-二苯基
吡嗪-2-基)-N-异丙
氨基]丁氧基}-N-(甲磺酰基)乙酰胺的
前列环素受体激动剂的制备方法及其中间体。这些方法操作简单方便,环保且适合工业生产,能够以良好的产率和较高的纯度获得产品。