首页> 外文会议>International Peptide Symposium;European Peptide Symposium >Synthesis and conformational study of(Bin)n and(beta 2,2-Bin)n homopeptides based on atropoisomeric alpha-and beta-amino acids derived from 1,1'-binaphthyl
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Synthesis and conformational study of(Bin)n and(beta 2,2-Bin)n homopeptides based on atropoisomeric alpha-and beta-amino acids derived from 1,1'-binaphthyl

机译:基于阿托异构体α-β-氨基酸的(Bin)N和(β2,2-Zin)N和(Beta 2,2-Zin)N和(β2,2-Zin)N蛋白肽的合成和构象研究衍生自1,1'-二氯基苯

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The exploitation of C~(alpha,alpha)-disubstituted glycines with well-defined stereochemical properties have greatly enhanced the scope of peptide design by imposing local restrictions on backbone conformation.Oligomers of beta-amino acids have also emerged in the past few years as capable of forming highly stable secondary structures.In this connection,inter alia we have previously shown that Bin,a novel C~(alpha,alpha)-disubstituted glycine possessing only an axial chirality,behaves as a 3_(10)-helix inducer and can give rise to efficient rigid helical peptide fluorophores.Here,we present our results on the synthesis and a conformational study of homo-a-peptides based on(S)-Bin as well as of linear and cyclic homo-P-peptides based on(R)-beta~(2,2)-Bin(Fig.1),using FT-IR absorption,NMR and CD techniques.
机译:C〜(α,α) - 具有明确定义的立体化学性质的甘氨酸的开发,通过施加局部限制对骨干构象的局部限制极大地增强了肽设计的范围。过去几年也出现了β-氨基酸的oligomers。 能够形成高度稳定的二次结构。在这种连接中,除其他外,我们之前已经表明,只有仅具有轴向手性的新型C〜(α,α) - 替代甘氨酸,表现为3_(10)-helix诱导剂和 可以产生高效的刚性螺旋肽荧光团。我们介绍了基于(S)-Bin以及基于线性和环状同源p-肽的合成和均型肽的合成和构象研究的结果。 (r)-beta〜(2,2)-bin(图1),使用FT-IR吸收,NMR和CD技术。

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