发明授权
- 专利标题: Preparation of amino acid derivatives
- 专利标题(中): 氨基酸衍生物的制备
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申请号: US146861申请日: 1988-01-22
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公开(公告)号: US4855455A公开(公告)日: 1989-08-08
- 发明人: Robert J. Kupper
- 申请人: Robert J. Kupper
- 申请人地址: NY New York
- 专利权人: W. R. Grace & Co.-Conn.
- 当前专利权人: W. R. Grace & Co.-Conn.
- 当前专利权人地址: NY New York
- 主分类号: C07C67/00
- IPC分类号: C07C67/00 ; C07C227/04 ; C07C241/00 ; C07C247/12 ; C07C309/67 ; C07C309/72 ; C07D331/04 ; C07D333/38 ; C07D335/02 ; C07D337/04
摘要:
A hydroxy-carboxylate ester is converted to an amino-acid-amide by replacement of the --OH group with --N.sub.3, via, e.g., CH.sub.3 SO.sub.2 Cl and NaN.sub.3 ; reacting with amine to convert the ester to amide; and hydrogenating --N.sub.3 to --NH.sub.2. The present process alleviates the conventional use of blocking-deblocking procedures.
公开/授权文献
- US6124011A Information-bearing discs and methods of fabrication 公开/授权日:2000-09-26
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