A new intermediate for synthesizing 1-substituted-4-[phenyl(propanoyl)amino]piperidine-4-carbonitrile derivatives is laid open. Specifically set out is a method for use of this intermediate in the preparation of remifentanil. The enclosed shorter process offers a greater yield of products with higher purity as compared to methods reported in the prior art.
一种用于合成1-取代-4-[苯基(丙酰基)
氨基]
哌啶-4-羧腈衍
生物的新中间体被揭示。具体提出了一种利用该中间体在制备雷
米芬太尼中的方法。这种包含的较短过程相比先前报道的方法,提供了更高纯度的产物更高的产量。