发明授权
US5766932A Process for preparing N-acetyl(L)-4-cyanophenylalanine from a mixture of the corresponding D,L ethyl esters using subtilisin 失效
使用枯草杆菌蛋白酶从相应的D,L乙酯的混合物制备N-乙酰基(L)-4-氰基苯丙氨酸的方法

  • 专利标题: Process for preparing N-acetyl(L)-4-cyanophenylalanine from a mixture of the corresponding D,L ethyl esters using subtilisin
  • 专利标题(中): 使用枯草杆菌蛋白酶从相应的D,L乙酯的混合物制备N-乙酰基(L)-4-氰基苯丙氨酸的方法
  • 申请号: US767760
    申请日: 1996-12-17
  • 公开(公告)号: US5766932A
    公开(公告)日: 1998-06-16
  • 发明人: Chi-Hsin R. King
  • 申请人: Chi-Hsin R. King
  • 申请人地址: OH Cincinnati
  • 专利权人: Hoechst Marion Roussel, Inc.
  • 当前专利权人: Hoechst Marion Roussel, Inc.
  • 当前专利权人地址: OH Cincinnati
  • 主分类号: C07K5/09
  • IPC分类号: C07K5/09 C12P13/02 C12P41/00 C12P13/22
Process for preparing N-acetyl(L)-4-cyanophenylalanine from a mixture of
the corresponding D,L ethyl esters using subtilisin
摘要:
The present invention is related to a novel process for preparing N-acetyl-(L)-4-cyanophenylalanine by resolving the racemic compound N-acetyl-(D,L)-4-cyanophenylalanine ethyl ester, and a novel process to prepare a stereoisomer of Ac-(L)-pAph-Chg-PalMe(3)-NH.sub.2 by using the intermediate N-acetyl-(L)-4-cyanophenylalanine.
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