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本文引用的文献

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Nature of amide carbonyl--carbonyl interactions in proteins.蛋白质中酰胺羰基 - 羰基相互作用的本质
J Am Chem Soc. 2009 Jun 3;131(21):7244-6. doi: 10.1021/ja901188y.
2
Collagen structure and stability.胶原蛋白结构与稳定性。
Annu Rev Biochem. 2009;78:929-58. doi: 10.1146/annurev.biochem.77.032207.120833.
3
Foldamers with heterogeneous backbones.具有异质主链的折叠体。
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Beta-peptidic peptidomimetics.β-肽类拟肽物
Acc Chem Res. 2008 Oct;41(10):1366-75. doi: 10.1021/ar700263g. Epub 2008 Jun 26.
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The world of beta- and gamma-peptides comprised of homologated proteinogenic amino acids and other components.由同源蛋白质氨基酸和其他成分组成的β-肽和γ-肽世界。
Chem Biodivers. 2004 Aug;1(8):1111-239. doi: 10.1002/cbdv.200490087.
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Synthesis of 2,2-disubstituted pyrrolidine-4-carboxylic acid derivatives and their incorporation into beta-peptide oligomers.2,2-二取代吡咯烷-4-羧酸衍生物的合成及其并入β-肽寡聚物中。
J Org Chem. 2005 Apr 29;70(9):3353-62. doi: 10.1021/jo048639z.
7
Secondary structural preferences of 2,2-disubstituted pyrrolidine-4-carboxylic acid oligomers: beta-peptide foldamers that cannot form internal hydrogen bonds.2,2-二取代吡咯烷-4-羧酸低聚物的二级结构偏好:无法形成分子内氢键的β-肽折叠体
J Am Chem Soc. 2003 Jul 30;125(30):9035-7. doi: 10.1021/ja034561c.
8
Conformational behavior of beta-proline oligomers.β-脯氨酸低聚物的构象行为。
J Am Chem Soc. 2003 Dec 24;125(51):15855-62. doi: 10.1021/ja036471d.
9
Modification of 1-substituents in the 2-azabicyclo[2.1.1]hexane ring system; approaches to potential nicotinic acetylcholine receptor ligands from 2,4-methanoproline derivatives.2-氮杂双环[2.1.1]己烷环系中1-取代基的修饰;从2,4-亚甲基脯氨酸衍生物制备潜在烟碱型乙酰胆碱受体配体的方法。
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10
The polypeptide chain configuration of collagen.胶原蛋白的多肽链构型。
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5-羧基-甲氨嘧啶-β-氨基酸低聚物。寻找有序性。

Oligomers of a 5-carboxy-methanopyrrolidine β-amino acid. A search for order.

机构信息

Department of Chemistry, Temple University, Philadelphia, Pennsylvania 19122, USA.

出版信息

Org Lett. 2010 Dec 3;12(23):5438-41. doi: 10.1021/ol1022917. Epub 2010 Nov 2.

DOI:10.1021/ol1022917
PMID:21043445
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC2993784/
Abstract

CD spectra for homooligomers (n = 4, 6, 8) of (1S,4R,5R)-5-syn-carboxy-2-azabicyclo[2.1.1]hexane (MPCA), a methano-bridged pyrrolidine β-carboxylic acid, suggest an ordered secondary structure. Even in the absence of internal hydrogen bonding, solution NMR, X-ray, and in silico analyses of the tetramer are indicative of conformations with trans-amides and C(5)-amide-carbonyls oriented toward the C(4) bridgehead. This highly constrained β-amino acid could prove useful in the ongoing development of well-defined foldamers.

摘要

(1S,4R,5R)-5-顺式-羧酸-2-氮杂双环[2.1.1]己烷(MPCA)的同寡聚物(n = 4、6、8)的 CD 光谱表明其具有有序的二级结构。即使没有内部氢键,四聚体的溶液 NMR、X 射线和计算机分析也表明存在具有反酰胺和 C(5)-酰胺羰基朝向 C(4)桥位的构象。这种高度受限的β-氨基酸在正在进行的定义明确的折叠体的开发中可能很有用。