H-(N²-Boc)aPhe-OMe | 150447-60-2

• 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: H-(N²-Boc)aPhe-OMe
• 英文别名: methyl (2S)-2-[2-[(2-methylpropan-2-yl)oxycarbonyl]hydrazinyl]-3-phenylpropanoate
• CAS: 150447-60-2
• 化学式: C₁₅H₂₂N₂O₄
• 分子量: 294.351
• InChiKey: DFAQAHOCXZREQN-LBPRGKRZSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  2.6
• 重原子数：
  21
• 可旋转键数：
  8
• 环数：
  1.0
• sp3杂化的碳原子比例：
  0.47
• 拓扑面积：
  76.7
• 氢给体数：
  2
• 氢受体数：
  5

反应信息

• 作为反应物：
  描述：

  H-(N²-Boc)aPhe-OMe 在 sodium hydroxide 、 三氟乙酸 作用下， 以 甲醇 、 二氯甲烷 为溶剂， 反应 6.0h， 生成 (S)-2-hydrazinyl-3-phenylpropanoic acid
  参考文献：
  名称：

  Ribosome-Mediated Incorporation of Hydrazinophenylalanine into Modified Peptide and Protein Analogues

  摘要：

  (S)-alpha-Hydrazinophenylalanyl-tRNA(Phe), an amino acyl-tRNA derivative containing the unnatural amino acid (S)-alpha-hydrazinophenylalanine, was prepared in an effort to examine the stereochemical requirements of the A-site of the ribosome during in vitro protein synthesis. The (S)-alpha-hydrazinophenylalanine moiety was of interest because it contains two nucleophilic centers, the secondary nitrogen attached to Ca, which is normally acylated during the course of peptide bond formation, and the sterically less hindered primary nitrogen. To determine the position of acylation, (S)-alpha-hydrazinophenylalanyl-tRNA(Phe) was tested in an Escherichia coli in vitro protein biosynthesizing system lacking elongation factor G, such that only dipeptide products were formed. The dipeptide product mixture was analyzed by HPLC in direct comparison with authentic synthetic standards. The dipeptide assay utilizing (S)-alpha-hydrazinophenylalanyl-tRNA(Phe) as the A-site tRNA established that the analogue functioned well as an acceptor tRNA; HPLC analysis of the products showed that both dipeptides were formed in approximately equal amounts. When attached to a suppressor tRNA transcript, (S)-alpha-hydrazinophenylalanine was also incorporated into position 27 of dihydrofolate reductase in an E. coli protein synthesizing system by readthrough of a nonsense codon. This finding expands the currently accepted model of peptide bond formation at the ribosome and adds to the repertoire of peptide-like products shown to form at the peptidyltransferase center of the ribosome.

  DOI：

  10.1021/ja974066e
• 作为产物：
  描述：

  L-苯基乳酸甲酯 在 三乙胺 作用下， 以 乙腈 为溶剂， 反应 120.0h， 生成 H-(N²-Boc)aPhe-OMe
  参考文献：
  名称：

  由2-磺酰氧基酯制备高光学纯度的2-肼基酯

  摘要：

  由手性2-羟基酯制备的手性2-三氟乙氧基酯与BocNHNH 2对映体特异性反应，以高收率生产光学纯的2-肼基酯衍生物。2-壬氧基氧基酯与BocNHNH 2的反应产生了2-（Bochydrazinyl）酯，因此提供了一种将酯转化为2-肼基酯衍生物的有效方法（尽管很慢）。

  DOI：

  10.1016/s0040-4039(00)88996-0

文献信息

• Synthesis and β-sheet propensity of constrained N-amino peptides
  作者：Matthew P. Sarnowski、Kyle P. Pedretty、Nicole Giddings、H. Lee Woodcock、Juan R. Del Valle

  DOI：10.1016/j.bmc.2017.08.017

  日期：2018.3

  The stabilization of β-sheet secondary structure through peptide backbone modification represents an attractive approach to protein mimicry. Here, we present strategies toward stable β-hairpin folds based on peptide strand N-amination. Novel pyrazolidinone and tetrahydropyridazinone dipeptide constraints were introduced via on-resin Mitsunobu cyclization between α-hydrazino acid residues and a serine

  通过肽主链修饰来稳定β-折叠二级结构代表了一种模仿蛋白质的诱人方法。在这里，我们提出了基于肽链N-氨基化的稳定β-发夹折叠的策略。通过在α-肼基酸残基与丝氨酸或高丝氨酸侧链之间的Mitsunobu树脂上的环化作用，引入了新的吡唑烷酮和四氢哒嗪酮二肽约束条件。然后使用GB1衍生的模型系统评估无环和环状N-氨基肽结构单元对水中β-发夹稳定性的影响。我们的结果证明了肽N具有很强的β折叠稳定作用-氨基取代基，并为共价二肽约束对β-折叠折叠的影响提供有用的见解。
• Access to Enantiopure α-Hydrazino Acids for <i>N</i>-Amino Peptide Synthesis
  作者：Chang Won Kang、Matthew P. Sarnowski、Yassin M. Elbatrawi、Juan R. Del Valle

  DOI：10.1021/acs.joc.6b02718

  日期：2017.2.3

  amide substituents have received less attention due, in part, to the lack of practical synthetic strategies. Here, we report the synthesis of α-hydrazino acids derived from 19 out of the 20 canonical proteinogenic amino acids and demonstrate their use in the solid-phase synthesis of N-amino peptide derivatives.

  α-肽的骨干N-甲基化已被广泛用于增强亲本序列的生物利用度和生物活性。杂原子肽酰胺取代基受到的关注较少，部分原因是缺乏实用的合成策略。在这里，我们报告了20种典型蛋白氨基酸中19种衍生的α-肼基酸的合成，并证明了它们在N-氨基肽衍生物的固相合成中的用途。
• Solid-Phase Synthesis of Tetrahydropyridazinedione-Constrained Peptides
  作者：Chang Won Kang、Sujeewa Ranatunga、Matthew P. Sarnowski、Juan R. Del Valle

  DOI：10.1021/ol5026684

  日期：2014.10.17

  acids suitable for chemoselective incorporation into growing peptide chains. Acid-catalyzed cyclization to form the Tpd ring during cleavage affords the target peptidomimetics in good yield and purity. The scope of Tpd incorporation is demonstrated through the synthesis of constrained peptides featuring nucleophilic/electrophilic side chains and sterically encumbered α-substituted hydrazino acid residues

  报道了衍生自骨架胺化肽的四氢哒嗪-3,6-二酮 (Tpd) 肽模拟物的设计和固相合成。所描述的协议的特点是手性 α-肼酸的合成适用于化学选择性掺入不断增长的肽链。在裂解过程中酸催化环化形成 Tpd 环以良好的产率和纯度提供目标肽模拟物。Tpd 掺入的范围通过合成具有亲核/亲电侧链和空间位阻的 α-取代肼酸残基的受限肽来证明。
• Peptide N-Amination Supports β-Sheet Conformations
  作者：Matthew P. Sarnowski、Chang Won Kang、Yassin M. Elbatrawi、Lukasz Wojtas、Juan R. Del Valle

  DOI：10.1002/anie.201609395

  日期：2017.2.13

  The conformational heterogeneity of backbone N‐substituted peptides limits their ability to adopt stable secondary structures. Herein, we describe a practical synthesis of backbone aminated peptides that readily adopt β‐sheet folds. Data derived from model N‐amino peptides suggest that extended conformations are stabilized through cooperative steric, electrostatic, and hydrogen‐bonding interactions

  骨架N-取代的肽的构象异质性限制了它们采用稳定二级结构的能力。本文中，我们描述了一种易于采用β-折叠的骨架胺化肽的实用合成方法。来自N-氨基肽模型的数据表明，扩展的构象可通过空间，静电和氢键相互作用来稳定。
• β-Strand mimics based on tetrahydropyridazinedione (tpd) peptide stitching
  作者：Chang Won Kang、Matthew P. Sarnowski、Sujeewa Ranatunga、Lukasz Wojtas、Rainer S. Metcalf、Wayne C. Guida、Juan R. Del Valle

  DOI：10.1039/c5cc07189e

  日期：——

  Covalent peptide stitching using tetrahydropyridazinedione subunits leads to novel constrained β-strand mimics.

  共价肽缝合使用四氢吡啶二酮亚基可导致新型约束的β-折链类似物。