(S)-tert-butyl 2-(((S)-1-methoxy-1-oxo-3-phenylpropan-2-yl)carbamoyl)pyrrolidine-1-carboxylate

• 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: (S)-tert-butyl 2-(((S)-1-methoxy-1-oxo-3-phenylpropan-2-yl)carbamoyl)pyrrolidine-1-carboxylate
• 英文别名: Boc-Pro-Phe-OMe；Boc-L-Pro-L-Phe-OMe；tert-butyl (S)-2-(((S)-1-methoxy-1-oxo-3-phenylpropan-2-yl)carbamoyl)pyrrolidine-1-carboxylate；N-tert-butoxycarbonyl-L-prolyl-L-phenylalanine methyl ester；tert-butyl (2S)-2-[[(2S)-1-methoxy-1-oxo-3-phenylpropan-2-yl]carbamoyl]pyrrolidine-1-carboxylate
• 化学式: C₂₀H₂₈N₂O₅
• 分子量: 376.453
• InChiKey: XYLTWJZHTZTSFD-HOTGVXAUSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  2.9
• 重原子数：
  27
• 可旋转键数：
  8
• 环数：
  2.0
• sp3杂化的碳原子比例：
  0.55
• 拓扑面积：
  84.9
• 氢给体数：
  1
• 氢受体数：
  5

反应信息

• 作为反应物：
  描述：

  (S)-tert-butyl 2-(((S)-1-methoxy-1-oxo-3-phenylpropan-2-yl)carbamoyl)pyrrolidine-1-carboxylate 在 sodium hydroxide 作用下， 生成 1-[叔丁氧羰基]-L-脯氨酰-L-苯丙氨酸
  参考文献：
  名称：

  有机磷试剂在环七肽合成中的应用

  摘要：

  摘要 选择从一种中药材中分离鉴定的环七肽环(Gly-Tyr-Gly-Gly-Pro-Phe-Pro)作为模型环肽，对有机磷试剂3-(二乙氧基磷酰氧基)-1,2,3-benzotriazin-4(3H)-one(DEPBT) 用于合成环肽并与其他两种有机磷试剂 DPPA 和 BOP 进行比较。

  DOI：

  10.1080/00397910008087044
• 作为产物：
  描述：

  BOC-L-脯氨酸 在 三乙胺 作用下， 以 二氯甲烷 、 N,N-二甲基甲酰胺 为溶剂， 反应 0.67h， 生成 (S)-tert-butyl 2-(((S)-1-methoxy-1-oxo-3-phenylpropan-2-yl)carbamoyl)pyrrolidine-1-carboxylate
  参考文献：
  名称：

  新型脯氨酸基咪唑鎓离子液体的合成

  摘要：

  摘要 一系列八种新型脯氨酸功能化的二肽咪唑鎓离子液体（DPIL），即Boc- [Pro-Pro-EMIM]，Boc- [Pro-Val-EMIM]，Boc- [Pro-Ala-EMIM]，Boc- [Pro含有[Cl]和[NTf 2 ]阴离子的-Phe-EMIM]是通过2-氯乙胺与四种不同的二肽（Boc-Pro-Pro-OH，Boc-Pro-Val-OH，Boc-Pro- Ala-OH和Boc-Pro-Phe-OH），然后与1-甲基咪唑反应，然后进行阴离子交换。合成的IL显示出与常规咪唑ILs相似的特征。通过1 H NMR，13 C NMR，FT-IR，质谱，TGA和DSC研究合成的IL 。TGA显示NTf 2的热稳定性得到改善过氯离子。DSC显示熔融温度低于100℃。 图形摘要

  DOI：

  10.1007/s00706-020-02670-x

文献信息

• 4-(4,6-Di[2,2,2-trifluoroethoxy]-1,3,5-triazin-2-yl)-4-methylomorpholinium Tetrafluoroborate. Triazine-Based Coupling Reagents Designed for Coupling Sterically Hindered Substrates
  作者：Konrad G. Jastrzabek、Ramon Subiros-Funosas、Fernando Albericio、Beata Kolesinska、Zbigniew J. Kaminski

  DOI：10.1021/jo2002038

  日期：2011.6.3

  the leaving group permitting formation of the cyclic intermediate or cyclic transition state and the absence of strongly solvating solvents. It has to be considered as highly probable that the absence of strongly solvating milieu favors cyclic intermediates or the cyclic transition state. Arrangement of both components into the cyclic intermediate or cyclic transition state by accumulation of the geminal

  制备了4-（4,6-二[2,2,2-三氟乙氧基] -1,3,5-三嗪-2-基）-4-甲基吗啉四氟硼酸酯（DFET / NMM / BF 4），并用作试剂用于耦合位阻基片。证实在DFET / NMM / BF 4与羧酸的反应中形成了适当的三嗪“超活性”酯。在Fmoc-RinkAmide-AM-PS树脂上合成Leu-脑啡肽五肽的方法中，通过系统修饰N-甲基或α，α-二取代残基的-Gly-Gly-片段，已研究了该试剂的效率。并与经典铵盐2-（1 H-苯并三唑-1-基）-1,1,3,3-四甲基溴化四氟硼酸盐（TBTU）。通过合成Aib–Aib（Aib：α-氨基异丁酸），MeVal-MeVal和MeLeu-MeLeu，对于DFET / NMM / BF 4，获得了脑啡肽类似物相当优越的性能。相对于TBTU而言，无论反应条件如何。对涉及三嗪试剂的偶联的分析表明，控制偶联受空间阻碍的底物的效率的因素是离
• Antimicrobial activity, biocompatibility and hydrogelation ability of dipeptide-based amphiphiles
  作者：Rajendra Narayan Mitra、Anshupriya Shome、Pritha Paul、Prasanta Kumar Das

  DOI：10.1039/b815368j

  日期：——

  The development of new antibiotics is of increasing importance due to the growing resistance power of microbes against conventional drugs. To this end, cationic peptides are emerging as clinically potent antimicrobial agents. In the present study, we have synthesized six dipeptide-based cationic amphiphiles with different head group structures by varying combinations of L-amino acid residues. These amphiphiles showed remarkable growth inhibiting activity on several Gram-positive (minimum inhibitory concentration (MIC) = 0.1–10 µg/mL) and Gram-negative (MIC = 5–150 µg/mL) bacteria as well as on fungus (MIC = 1–50 µg/mL). The inherent antimicrobial efficacies of these cationic dipeptides were influenced by the head group architecture of the amphiphiles. Encouragingly, these amphiphiles selectively attacked microbial cells, while showing biocompatibility toward mammalian cells. The results show that the rational designing of short peptide-based cationic amphiphiles might serve as a promising strategy in the development of antimicrobial agents with greater cell specificities. In addition, the amphiphiles showed water gelation ability at room temperature. The formation of non-covalent supramolecular networks in gelation was established by microscopic and spectroscopic studies.

  由于微生物对传统药物的耐药能力不断增强，新型抗生素的研发日益重要。为此，阳离子肽作为一种临床有效的抗菌剂正在崭露头角。在本项研究中，我们通过改变L-氨基酸残基的组合，合成了六种具有不同头部结构的双肽基阳离子两亲性分子。这些两亲性分子对多种革兰氏阳性菌（最低抑制浓度（MIC）= 0.1–10 µg/mL）、革兰氏阴性菌（MIC = 5–150 µg/mL）以及真菌（MIC = 1–50 µg/mL）显示出显著的生长抑制活性。这些阳离子双肽的固有抗菌功效受到两亲性分子头部结构的影响。令人鼓舞的是，这些两亲性分子选择性地攻击微生物细胞，同时对哺乳动物细胞表现出生物相容性。结果表明，合理设计基于短肽的阳离子两亲性分子可能是开发具有更高细胞选择性的抗菌剂的潜在策略。此外，这些两亲性分子在室温下具有水凝胶化能力。通过显微镜和光谱学研究，建立了凝胶化中非共价超分子网络的形成。
• 9-Silafluorenyl Dichlorides as Chemically Ligating Coupling Agents and Their Application in Peptide Synthesis
  作者：Samuel J. Aspin、Sylvain Taillemaud、Patrick Cyr、André B. Charette

  DOI：10.1002/anie.201606120

  日期：2016.10.24

  A fundamentally simple, mild, and practical procedure for peptide bond formation is reported that employs a stoichiometric amount of easy‐to‐access 9‐silafluorenyl dichlorides as the coupling agent. Without initial preactivation or elaboration of the carboxylic acid or amine termini of the amino acids, the developed reagent is proposed to act through an unprecedented chemical ligation mechanism, bringing

  据报道，一种基本简单，温和且实用的肽键形成方法是采用化学计量的易于获得的9-二氟芴基二氯化物作为偶联剂。无需对氨基酸的羧酸或胺末端进行初步的预活化或精加工，就可以开发出一种通过空前的化学连接机制发挥作用的试剂，从而将两个偶联配偶体聚集在一起，然后再将其消除。因此以高收率和低至无差向异构化提供所需的酰胺或肽键。
• Acetic acid-catalyzed diketopiperazine synthesis.
  作者：KENJI SUZUKI、YUSUKE SASAKI、NOBUYOSHI ENDO、YUICHI MIHARA

  DOI：10.1248/cpb.29.233

  日期：——

  Optically pure diketopiperazines were obtained in good yields when dipeptide esters were refluxed in 2-butanol containing 0.1 M acetic acid for 3 hours. When prolyl-amino acid ester was used as the starting material, 1 to 2 M acetic acid was the most effective concentration.

  当二肽酯在含有0.1 M醋酸的2-丁醇中回流3小时时，得到了光学纯的二酮哌嗪，产率良好。当使用脯氨酰氨基酸酯作为起始材料时，1至2 M醋酸是最有效的浓度。
• Phenysilane and Silicon Tetraacetate: Versatile Promotors for Amide Synthesis
  作者：Eléonore Morisset、Aurélien Chardon、Jacques Rouden、Jérôme Blanchet

  DOI：10.1002/ejoc.201901660

  日期：2020.1.23

  Phenylsilane as been reassed as useful coupling reagent for amides synthesis. Peptides and Weinreb amides are easily obtained under mild conditions in absence of epimzerization even with challenging substrates such as phenylglycine. Further investigation regarding the reactivity of stable acetoxysilanes supported phenylpolyacyloxysilane as key intermediate.

  苯甲硅烷被重新确定为用于酰胺合成的有用偶联剂。即使在温和的条件下，即使存在具有挑战性的底物（如苯基甘氨酸），也可以轻松地在温和条件下获得肽和Weinreb酰胺。关于稳定的乙酰氧基硅烷担载的关键中间体苯基聚酰氧基硅烷的反应性的进一步研究。