作者:Robert B. Appell、Lee T. Boulton、Edward D. Daugs、Matt Hansen、Christopher H. Hanson、Jerry Heinrich、Christel Kronig、Richard C. Lloyd、David Louks、Mark Nitz、Céline Praquin、James A Ramsden、Helen Samuel、Mark Smit、Matthew Willets
DOI:10.1021/op3002855
日期:2013.1.18
The synthesis of (S)-N-Boc-bis(4-fluorophenyl)alanine, an intermediate in the synthesis of denagliptin, is described from the synthesis of a 12 g proof of principle sample to a >900 kg cGMP manufacturing campaign. The chiral centre was established by the asymmetric hydrogenation of the sterically crowded precursor, ethyl 2-acetamido-3,3-bis(4-fluorophenyl)acrylate. The ability to isolate the various
从合成12 g原理样品到超过900 kg cGMP的生产过程,描述了(S)-N -Boc-双(4-氟苯基)丙氨酸的合成方法,该合成方法是合成denagliptin的中间体。通过空间拥挤的前体2-乙酰氨基-3,3-双(4-氟苯基)丙烯酸乙酯的不对称氢化来建立手性中心。以物理形式分离各种中间体的能力很容易进行过滤,洗涤和最终纯化,这为成功的制造活动奠定了基础。