benzyl (tert-butoxycarbonyl)-L-phenylalanyl-L-valinate | 136282-23-0

• 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: benzyl (tert-butoxycarbonyl)-L-phenylalanyl-L-valinate
• 英文别名: Boc-Phe-Val-OBn；benzyl (2S)-3-methyl-2-[[(2S)-2-[(2-methylpropan-2-yl)oxycarbonylamino]-3-phenylpropanoyl]amino]butanoate
• CAS: 136282-23-0
• 化学式: C₂₆H₃₄N₂O₅
• 分子量: 454.566
• InChiKey: WYXDQWJUIGAMBJ-VXKWHMMOSA-N

物化性质

• 熔点：
  68-69 °C
• 沸点：
  622.3±55.0 °C(Predicted)
• 密度：
  1.125±0.06 g/cm3(Predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  4.7
• 重原子数：
  33
• 可旋转键数：
  12
• 环数：
  2.0
• sp3杂化的碳原子比例：
  0.42
• 拓扑面积：
  93.7
• 氢给体数：
  2
• 氢受体数：
  5

反应信息

• 作为反应物：
  描述：

  benzyl (tert-butoxycarbonyl)-L-phenylalanyl-L-valinate 在 10percent Pd/C 甲酸 、 氢气 、 1-羟基苯并三唑 、 N,N'-二环己基碳二亚胺 作用下， 以 四氢呋喃 、 乙醇 为溶剂， 20.0 ℃ 、275.8 kPa 条件下， 反应 58.5h， 生成 H-Phe-Val-Phe-Thr(Bn)-Leu-OBn
  参考文献：
  名称：

  Synthesis and Biological Activity of the Prodrug of Class I Major Histocompatibility Peptide GILGFVFTL Activated by β-Glucuronidase

  摘要：

  The first synthesis of a prodrug of HLA-A.2.1 associated antigenic influenza peptide 2a was accomplished. Two methods for synthesis of prodrugs of antigenic peptides activated by beta-glucuronidase and comprising a self-immolative 3-nitrobenzyloxycarbonyl moiety were investigated. Reaction of P-glucuronic acid glycoside of 4-hydroxy-3-nitrobenzyl alcohol (3) with N,N'-disuccinimidyl carbonate (DSC) followed by conjugation with AlaOMe, Gly, Thr, Phe-Leu, and Leu-Arg gave carbamates 4a-4f. Deacetylation of 4b and 4e with MeONa/MeOH gave beta-glucuronides 5b and 5e. Compound 5e was converted to P-glucuronic acid conjugate 6e by the action of pig liver esterase (PLE). Compound 6e is a substrate for beta-glucuronidase. Method of a direct introduction of the prodrug residue into antigenic nonapeptide GILGFVFTL (2b) failed. Alternately, glycine conjugate 5b was activated to pentafluorophenyl ester 10. Model coupling of 10 with Phe-Leu gave tripeptide conjugate ester 11a which was hydrolyzed by PLE to uronic acid 12. Condensation of 10 with octapeptide ILGFVFTL (9) gave prodrug precursor 11b. Octapeptide 9 was prepared by de novo synthesis using a racemization-free fragment coupling method. Ester hydrolysis with Ba(OH)(2)/MeOH gave the target prodrug 2a which is a substrate for beta-glucuronidase. Prodrug 2a does not bind to HLA-A2.1 of T2 human cells defective in major histocompatibility complex I (MHC I)-associated peptide processing. Addition of beta-glucuronidase restored the binding to the level observed with parent nonapeptide 2b although higher concentrations of prodrug 2a and enzyme were necessary.

  DOI：

  10.1021/jm010352w
• 作为产物：
  描述：

  L-缬氨酸 在 N-甲基吗啉 、 1-羟基苯并三唑 、 盐酸-N-乙基-Nˊ-(3-二甲氨基丙基)碳二亚胺 作用下， 以 四氢呋喃 、 水 、 甲苯 为溶剂， 反应 36.0h， 生成 benzyl (tert-butoxycarbonyl)-L-phenylalanyl-L-valinate
  参考文献：
  名称：

  环丙草胺基β-内酯作为有效蛋白酶体抑制剂的设计，合成和评价

  摘要：

  肽β-内酯蛋白酶体抑制剂（PIs）胱氨酸A和B被用于进行结构活性关系（SAR）研究，以评估其抗癌潜力。总共设计，合成并评估了24种不同的类似物的蛋白酶体抑制作用，对几种癌细胞系的细胞毒性以及它们进入完整细胞的能力。X射线晶体学分析和亚基选择性用于确定与β-内酯（P 1），肽核，（P x和P y）和端帽（P z）的结构修饰相关的特定亚基结合我们的脚手架。cygogolide衍生物5k，在P y和P处结构唯一图1显示出对人蛋白酶体的β5亚基最有希望的抑制活性（IC 50  ＝ 3.1nM），并且对MCF-7（IC 50  ＝ 416nM），MDA-MB-231（IC 50  ＝ 74nM）和对MCF-7具有显着的细胞毒性。RPMI 8226（IC 50  = 41 nM）癌细胞系。细胞浸润试验表明，微小的结构修饰对我们的PI抑制细胞内蛋白酶体的能力有重大影响，我们确定5k是继续治疗研究的有希望

  DOI：

  10.1016/j.ejmech.2018.08.052

文献信息

• Catalytic Dehydrative Peptide Synthesis with <i>gem</i>-Diboronic Acids
  作者：Kenichi Michigami、Tatsuhiko Sakaguchi、Yoshiji Takemoto

  DOI：10.1021/acscatal.9b03894

  日期：2020.1.3

  Alkane-gem-diboronic acids have emerged as versatile organoboron catalysts for dehydrative amidation of α-amino acids. A phenol-substituted multiboron catalyst with a B–C–B structure outperformed simple arylboronic acids in the condensation of α-amino acids with suppressed epimerization of electrophiles. gem-diboronic acid catalysis were compatible with various O, N, and S-functionalized α-amino acids bearing N-protecting

  烷烃-宝石-二硼酸已经成为用于α-氨基酸脱水酰胺化的通用有机硼催化剂。具有α–C–B结构的苯酚取代的多硼催化剂在α-氨基酸的缩合和亲电异构体的抑制作用方面优于简单的芳基硼酸。宝石-二硼酸催化与各种带有N-保护基团的O，N和S-官能化的α-氨基酸兼容，这些保护基团包括肽合成中常用的氨基甲酸酯（Boc，Cbz，Fmoc）。ñ-三氟乙酰基保护作用使室温下空前的催化脱水肽合成成为可能。初步的机理研究表明，宝石-二硼酸的羧酸盐结合性质与芳基硼酸对羧酸的活化作用正交。宝石-二硼酸的独特反应性将为轻度催化肽缩合打开前景。
• US5798443A
  申请人：——

  公开号：US5798443A

  公开（公告）日：1998-08-25
• US6342582B1
  申请人：——

  公开号：US6342582B1

  公开（公告）日：2002-01-29
• Hybrid Peptide-Alkoxyamine Drugs: A Strategy for the Development of a New Family of Antiplasmodial Drugs
  作者：Ange W. Embo-Ibouanga、Michel Nguyen、Lucie Paloque、Mathilde Coustets、Jean-Patrick Joly、Jean-Michel Augereau、Nicolas Vanthuyne、Raphaël Bikanga、Naomie Coquin、Anne Robert、Gérard Audran、Jérôme Boissier、Philippe Mellet、Françoise Benoit-Vical、Sylvain R. A. Marque

  DOI：10.3390/molecules29061397

  日期：——

  The emergence and spread of drug-resistant Plasmodium falciparum parasites shed a serious concern on the worldwide control of malaria, the most important tropical disease in terms of mortality and morbidity. This situation has led us to consider the use of peptide-alkoxyamine derivatives as new antiplasmodial prodrugs that could potentially be efficient in the fight against resistant malaria parasites. Indeed, the peptide tag of the prodrug has been designed to be hydrolysed by parasite digestive proteases to afford highly labile alkoxyamines drugs, which spontaneously and instantaneously homolyse into two free radicals, one of which is expected to be active against P. falciparum. Since the parasite enzymes should trigger the production of the active drug in the parasite’s food vacuoles, our approach is summarized as “to dig its grave with its fork”. However, despite promising sub-micromolar IC50 values in the classical chemosensitivity assay, more in-depth tests evidenced that the anti-parasite activity of these compounds could be due to their cytostatic activity rather than a truly anti-parasitic profile, demonstrating that the antiplasmodial activity cannot be based only on measuring antiproliferative activity. It is therefore imperative to distinguish, with appropriate tests, a genuinely parasiticidal activity from a cytostatic activity.
• Synthesis and Biological Activity of the Prodrug of Class I Major Histocompatibility Peptide GILGFVFTL Activated by β-Glucuronidase
  作者：Sharad Rawale、Lew M. Hrihorczuk、Wei、Jiri Zemlicka

  DOI：10.1021/jm010352w

  日期：2002.2.1

  The first synthesis of a prodrug of HLA-A.2.1 associated antigenic influenza peptide 2a was accomplished. Two methods for synthesis of prodrugs of antigenic peptides activated by beta-glucuronidase and comprising a self-immolative 3-nitrobenzyloxycarbonyl moiety were investigated. Reaction of P-glucuronic acid glycoside of 4-hydroxy-3-nitrobenzyl alcohol (3) with N,N'-disuccinimidyl carbonate (DSC) followed by conjugation with AlaOMe, Gly, Thr, Phe-Leu, and Leu-Arg gave carbamates 4a-4f. Deacetylation of 4b and 4e with MeONa/MeOH gave beta-glucuronides 5b and 5e. Compound 5e was converted to P-glucuronic acid conjugate 6e by the action of pig liver esterase (PLE). Compound 6e is a substrate for beta-glucuronidase. Method of a direct introduction of the prodrug residue into antigenic nonapeptide GILGFVFTL (2b) failed. Alternately, glycine conjugate 5b was activated to pentafluorophenyl ester 10. Model coupling of 10 with Phe-Leu gave tripeptide conjugate ester 11a which was hydrolyzed by PLE to uronic acid 12. Condensation of 10 with octapeptide ILGFVFTL (9) gave prodrug precursor 11b. Octapeptide 9 was prepared by de novo synthesis using a racemization-free fragment coupling method. Ester hydrolysis with Ba(OH)(2)/MeOH gave the target prodrug 2a which is a substrate for beta-glucuronidase. Prodrug 2a does not bind to HLA-A2.1 of T2 human cells defective in major histocompatibility complex I (MHC I)-associated peptide processing. Addition of beta-glucuronidase restored the binding to the level observed with parent nonapeptide 2b although higher concentrations of prodrug 2a and enzyme were necessary.