Nitrogen Arylation for Macrocyclization of Unprotected Peptides.

Nitrogen Arylation for Macrocyclization of Unprotected Peptides.
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DOI:
10.1021/jacs.6b03757
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发表时间:
2016-07-13
影响因子:
15
通讯作者:
Pentelute BL
Pentelute BL
中科院分区:
化学1区
文献类型:
--
作者:
Lautrette G;Touti F;Lee HG;Dai P;Pentelute BL

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我们描述了一种由未保护的前体通过氮芳基化合成大环肽的有效和温和的方法。研究了各种亲电体和基于赖氨酸的亲核体,并且即使对于具有14种变体的大环化扫描也显示出高产率的产物形成。我们发现,与硫醇芳基化物质相比,氮连接的芳基产物对碱和氧化更稳定,从而突出了这种方法的实用性。最后,对MDM 2的p53肽抑制剂进行N-芳基大环化,并鉴定出具有改善的蛋白水解稳定性和细胞渗透性的纳摩尔结合剂。
We describe an efficient and mild method for the synthesis of macrocyclic peptides via nitrogen arylation from unprotected precursors. Various electro-philes and lysine-based nucleophiles were investigated and showed high-yielding product formation, even for a macrocyclization scan with 14 variants. We found that nitrogen-linked aryl products were more stable to base and oxidation when compared to thiol arylated species, thereby highlighting the utility of this methodology. Finally, N-aryl macrocyclization was performed on a p53 peptide inhibitor of MDM2 and resulted in identification of a nanomolar binder with improved proteolytic stability and cell permeability.
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