Enzymatic Synthesis of C-Terminal Arylamides of Amino Acids and Peptides
摘要:
A mild and cost-efficient chemo-enzymatic method for the synthesis of C-terminal arylamides of amino acid and peptides is described. Using the industrial serine protease Alcalase under near-anhydrous conditions, C-terminal arylamides of N-Cbz-protected amino acids and peptides could be obtained from the corresponding C-terminal carboxylic acids, methyl (Me) or benzyl (Bn) esters, in hi-h chemical and enantio- and diastereomeric purities. Yields ranged between 50% and 95% depending on the size of the aryl substituents and the presence of electron-withdrawing substituents. Complete (alpha-C-terminal selectivity could be obtained even in the presence of various unprotected side-chain functionalities such as beta/gamma-carboxyl, hydroxyl, and guanidino groups. In addition, the use of the cysteine protease papain and the lipase Cal-B gave anilides in high yields. The chemo-enzymatic synthesis of arylamides proved to be completely free of racemization, in contrast to the state-of-the-art chemical methods.
A Convenient Synthesis of Benzyloxycarbonyl-L-amino Acid 4-Methylcoumaryl-7-amides
作者:S. Khammungkhune、G. Sigler
DOI:10.1055/s-1980-29136
日期:——
POZDNEV, V. F.
作者:POZDNEV, V. F.
DOI:——
日期:——
[EN] CHEMO-ENZYMATIC SYNTHESIS OF A C-TERMINAL ARYL AMIDE OF AN AMINO ACID OR PEPTIDE<br/>[FR] SYNTHÈSE CHIMIO-ENZYMATIQUE D'UN ARYLAMIDE DE C-TERMINAL D'UN ACIDE AMINÉ OU PEPTIDE
申请人:DSM IP ASSETS BV
公开号:WO2009080631A2
公开(公告)日:2009-07-02
The present invention relates to a method for preparing an aryl amide, comprising reacting an aryl amine with a compound selected from N-protected amino acids and optionally N-protected peptides in the presence of a hydrolytic enzyme. The invention further relates to the use of a compound obtained in a method according to the invention in the manufacture of a diagnostic. In addition the invention relates to the use of a compound obtained in a method according to the invention as a substrate for a proteolytic enzyme.
Enzymatic Synthesis of <i>C</i>-Terminal Arylamides of Amino Acids and Peptides
作者:Timo Nuijens、Claudia Cusan、John A. W. Kruijtzer、Dirk T. S. Rijkers、Rob M. J. Liskamp、Peter J. L. M. Quaedflieg
DOI:10.1021/jo900634g
日期:2009.8.7
A mild and cost-efficient chemo-enzymatic method for the synthesis of C-terminal arylamides of amino acid and peptides is described. Using the industrial serine protease Alcalase under near-anhydrous conditions, C-terminal arylamides of N-Cbz-protected amino acids and peptides could be obtained from the corresponding C-terminal carboxylic acids, methyl (Me) or benzyl (Bn) esters, in hi-h chemical and enantio- and diastereomeric purities. Yields ranged between 50% and 95% depending on the size of the aryl substituents and the presence of electron-withdrawing substituents. Complete (alpha-C-terminal selectivity could be obtained even in the presence of various unprotected side-chain functionalities such as beta/gamma-carboxyl, hydroxyl, and guanidino groups. In addition, the use of the cysteine protease papain and the lipase Cal-B gave anilides in high yields. The chemo-enzymatic synthesis of arylamides proved to be completely free of racemization, in contrast to the state-of-the-art chemical methods.