Synthesis of N-Boc-protected alpha-aminonitriles starting from N-Boc-protected alpha-aminosulfones is described. Treatment of the sulfone with two equivalents of potassium cyanide in 2-propanol or dichloromethane-H2O under phase transfer condition affords crystalline N-Boc-protected alpha-aminonitriles in good yield. Hydrolysis of the aminonitriles provides a convenient access to racemic a-amino acids.
MODIFIED HEXA- AND HEPTAPEPTIDE ANAPHYLATOXIN RECEPTOR LIGANDS
申请人:ABBOTT LABORATORIES
公开号:EP0564533A1
公开(公告)日:1993-10-13
EP0564533A4
申请人:——
公开号:EP0564533A4
公开(公告)日:1994-11-02
US5387671A
申请人:——
公开号:US5387671A
公开(公告)日:1995-02-07
[EN] MODIFIED HEXA- AND HEPTAPEPTIDE ANAPHYLATOXIN RECEPTOR LIGANDS
申请人:ABBOTT LABORATORIES
公开号:WO1992012168A1
公开(公告)日:1992-07-23
(EN) Oligopeptide compounds or oligopeptide analogue compounds of the formula A-B-D-E-G-J-L-M-Q are ligands for the anaphylatoxin receptor and are useful in the treatment of inflammatory disease states. Also disclosed are anaphylatoxin receptor ligand compositions and a method for modulating anaphylatoxin activity.(FR) Composés d'oligopeptides ou composés d'analogues d'oligopeptide répondant à la formule A-B-D-E-G-L-M-Q servant de ligands pour le récepteur d'anaphylatoxine, qui sont utiles dans le traitement des états pathologiques inflammatoires. Cette invention concerne également des compositions de ligand de récepteur d'anaphylatoxine et un procédé permettant de moduler l'activité de l'anaphylatoxine.