(4S)-1-(tert-butoxycarbonyl)-4-bromo-D-proline benzyl ester | 132622-93-6

• 分子结构分类: 有机化合物 - 有机酸及其衍生物 - 羧酸及其衍生物
• 英文名称: (4S)-1-(tert-butoxycarbonyl)-4-bromo-D-proline benzyl ester
• 英文别名: 2-O-benzyl 1-O-tert-butyl (2R,4S)-4-bromopyrrolidine-1,2-dicarboxylate
• CAS: 132622-93-6
• 化学式: C₁₇H₂₂BrNO₄
• 分子量: 384.27
• InChiKey: BZRCQFJSGVBVKN-UONOGXRCSA-N

物化性质

• 沸点：
  443.6±45.0 °C(Predicted)
• 密度：
  1.374±0.06 g/cm3(Predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  3.5
• 重原子数：
  23
• 可旋转键数：
  6
• 环数：
  2.0
• sp3杂化的碳原子比例：
  0.53
• 拓扑面积：
  55.8
• 氢给体数：
  0
• 氢受体数：
  4

反应信息

• 作为反应物：
  描述：

  (4S)-1-(tert-butoxycarbonyl)-4-bromo-D-proline benzyl ester 在 palladium on activated charcoal sodium azide 、 氢气 作用下， 以 乙醇 、 水 、 N,N-二甲基甲酰胺 为溶剂， 55.0 ℃ 、689.48 kPa 条件下， 生成 1-N-boc-4(r)-氨基-吡咯烷-2(r)-羧酸
  参考文献：
  名称：

  Conformationally restricted arginine analogs

  摘要：

  We report the practical synthesis and structural characterization of a set of conformationally constrained protected arginine analogues. These enantiomerically pure analogues have the general structure 1 and are prepared in seven to eight steps from the commercially available isomers of 4-hydroxyproline. These analogues vary in side chain length and in relative and absolute stereochemistry and are suitable for the direct introduction into peptides. The resulting peptide analogues should be useful as enzymatically stable replacements for bioactive peptides and as probes for understanding the conformational aspects of protein-peptide interactions.

  DOI：

  10.1021/jo00009a016
• 作为产物：
  描述：

  (2R,4R)-4-羟基吡咯烷-2-羧酸苄酯 在 四溴化碳 、 N,N-二异丙基乙胺 、 三苯基膦 作用下， 以 1,4-二氧六环 、 二氯甲烷 为溶剂， 反应 18.0h， 生成 (4S)-1-(tert-butoxycarbonyl)-4-bromo-D-proline benzyl ester
  参考文献：
  名称：

  Conformationally restricted arginine analogs

  摘要：

  We report the practical synthesis and structural characterization of a set of conformationally constrained protected arginine analogues. These enantiomerically pure analogues have the general structure 1 and are prepared in seven to eight steps from the commercially available isomers of 4-hydroxyproline. These analogues vary in side chain length and in relative and absolute stereochemistry and are suitable for the direct introduction into peptides. The resulting peptide analogues should be useful as enzymatically stable replacements for bioactive peptides and as probes for understanding the conformational aspects of protein-peptide interactions.

  DOI：

  10.1021/jo00009a016

文献信息

• Chimeric amino acid analogues
  申请人：Genentech, Inc.

  公开号：US05120859A1

  公开（公告）日：1992-06-09

  A chimeric amino acid analogue is provided suitable for incorporating into peptides which compound is represented by Formula 1: ##STR1## where P.sub.1 is preferably an amine protecting agent, and P.sub.2 and P.sub.3 are preferably amine or guanidine protecting agents. X can be OH, halide, or preferably an activating group suitable for conjugating the compound of Formula 1 to a peptide by conventional means, and m and n are 0-1 and 0-2 respectively. Peptides containing the chimeric amino acid analog are provided and include a platelet-aggregation inhibitor represented by Aaa.sub.1 -CPdl-Gly-Asp-Aaa.sub.2 where Aaa.sub.1 is Gly or H, Cpdl is the compound of Formula 1 which has been deprotected and Aaa.sub.2 is a hydrophobic amino acid preferably Val.

  提供了一种嵌入肽中的嵌合氨基酸类似物，该化合物由公式1表示：##STR1##其中，P.sub.1最好是氨基保护剂，P.sub.2和P.sub.3最好是氨基或鸟嘌呤保护剂。X可以是OH、卤素或更好的活化基团，适合通过常规手段将公式1化合物与肽结合，m和n分别为0-1和0-2。提供了含有嵌合氨基酸类似物的肽，其中包括一个由Aaa.sub.1-CPdl-Gly-Asp-Aaa.sub.2表示的血小板聚集抑制剂，其中Aaa.sub.1是Gly或H，Cpdl是已去保护的公式1化合物，Aaa.sub.2是一个亲水性氨基酸，最好是Val。
• Discovery of Subnanomolar Arginine-Glycine-Aspartate-Based α_Vβ₃/α_Vβ₅ Integrin Binders Embedding 4-Aminoproline Residues
  作者：Franca Zanardi、Paola Burreddu、Gloria Rassu、Luciana Auzzas、Lucia Battistini、Claudio Curti、Andrea Sartori、Giuseppe Nicastro、Gloria Menchi、Nicoletta Cini、Anna Bottonocetti、Silvia Raspanti、Giovanni Casiraghi

  DOI：10.1021/jm701214z

  日期：2008.3.1

  The embodiment of 4-aminoproline residues (Amp) into the arginine-glycine-aspartate (RGD) sequence led to the discovery of a novel class of high-affinity alpha v beta(3)/alpha v beta(5) integrin binders [IC50h(alpha v beta(3)) 0.03-5.12 nM; IC50h(alpha v beta(5)) 0.88-154 nM]. A total of eight cyclopeptides of type cyclo-[-Arg-Gly-Asp-Amp-], 5-12, were assembled by a standard solid-phase peptide synthesis protocol that involved the C2-carboxyl and C4-amino functionalities of the proline scaffolds, leaving the N-alpha-nuclear site untouched. Functionalization of this vacant proline site with either alkyl or acyl substituents proved feasible, with significant benefit to the integrin binding capabilities of the ligands. Notably, six out of eight cyclopeptide inhibitors, 5-7 and 9-11, showed moderate yet significant selectivity toward the alpha v beta(3) receptor. The three-dimensional structure in water was determined by NMR techniques and molecular dynamics calculations. Docking studies to the X-ray crystal structure of the extracellular segment of integrin alpha v beta(3) complexed with reference compound 1 were also performed on selected analogues to highlight the structural features required for potent ligand binding affinity.
• US5120859A
  申请人：——

  公开号：US5120859A

  公开（公告）日：1992-06-09
• Conformationally restricted arginine analogs
  作者：Thomas R. Webb、Charles Eigenbrot

  DOI：10.1021/jo00009a016

  日期：1991.4

  We report the practical synthesis and structural characterization of a set of conformationally constrained protected arginine analogues. These enantiomerically pure analogues have the general structure 1 and are prepared in seven to eight steps from the commercially available isomers of 4-hydroxyproline. These analogues vary in side chain length and in relative and absolute stereochemistry and are suitable for the direct introduction into peptides. The resulting peptide analogues should be useful as enzymatically stable replacements for bioactive peptides and as probes for understanding the conformational aspects of protein-peptide interactions.