H-Leu-Gly-OBzl | 47094-27-9

• 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-Leu-Gly-OBzl
• 英文别名: H-Leu-Gly-OBn；N-L-leucyl-glycine benzyl ester；N-L-Leucyl-glycin-benzylester；(L-Leucyl)glycine benzyl ester；Leu-Gly-OCH2Ph；benzyl 2-[[(2S)-2-amino-4-methylpentanoyl]amino]acetate
• CAS: 47094-27-9
• 化学式: C₁₅H₂₂N₂O₃
• 分子量: 278.351
• InChiKey: LMVJXNXIYXWOHI-ZDUSSCGKSA-N

物化性质

• 沸点：
  437.9±30.0 °C(Predicted)
• 密度：
  1.106±0.06 g/cm3(Predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  1.8
• 重原子数：
  20
• 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：
  81.4
• 氢给体数：
  2
• 氢受体数：
  4

反应信息

• 作为反应物：
  描述：

  H-Leu-Gly-OBzl 在 palladium on activated charcoal 五氟苯酚 、 氢气 、 N,N'-二环己基碳二亚胺 作用下， 以 N,N-二甲基甲酰胺 为溶剂， 反应 34.0h， 生成
  参考文献：
  名称：

  Ovchinnikov, Mikhail V.; Bespalova, Zhanna D.; Molokoedov, Aleksandr S., Collection of Czechoslovak Chemical Communications, 1989, vol. 54, # 3, p. 772 - 783

  摘要：

  DOI：
• 作为产物：
  描述：

  甘氨酸苄酯对甲苯磺酸盐 在 1-羟基苯并三唑 、 O-(1H-benzotriazol-1-yl)-N,N,N',N'-tetramethyluronium hexafluorophosphate 、 三氟乙酸 作用下， 以 二氯甲烷 、 N,N-二甲基甲酰胺 为溶剂， 反应 0.33h， 生成 H-Leu-Gly-OBzl
  参考文献：
  名称：

  [EN] POLYETHYLENE GLYCOL-DRUG CONJUGATE AND USE THEREOF
  [FR] CONJUGUÉ POLYÉTHYLÈNE GLYCOL-MÉDICAMENT ET UTILISATION ASSOCIÉE
  [ZH] 聚乙二醇偶联药物及其用途

  摘要：

  一种聚乙二醇偶联药物及其用途，具体涉及式A所示的聚乙二醇偶联药物、其立体异构体或其药学上可接受的盐，用于制备所述聚乙二醇偶联药物、其立体异构体或其药学上可接受的盐的中间体，包含所述聚乙二醇偶联药物、其立体异构体或其药学上可接受的盐的药物组合物，以及所述聚乙二醇偶联药物、其立体异构体或其药学上可接受的盐在制备药物中的用途。

  公开号：

  WO2022242488A1

文献信息

• A Synthesis of Human Proinsulin C-Peptide
  作者：Ken’ichi Igano、Yuriko Minotani、Nobuo Yoshida、Masao Kono、Ken Inouye

  DOI：10.1246/bcsj.54.3088

  日期：1981.10

  A peptide corresponding to the thirty-one amino acid sequence of human proinsulin C-peptide (positions 33–63 of proinsulin) was synthesized by the solid-phase method. The product was purified consecutively by gel filtration, DEAE-cellulose chromatography, and high-performance liquid chromatography (HPLC). The purified material behaved as a single component in reversed-phase HPLC, gave correct amino acid ratios, and was not distinguished from natural human C-peptide in terms of immunoreactivity and chromatographic behaviors. The α→β transpeptidation at the Asp-Leu sequence, possible to occur associated with the HF cleavage, was studied using model peptides to demonstrate that the formation of β-peptide was 3–4% regardless of whether the β-carboxylic acid is free or protected as a benzyl ester.

  一段对应于人类前胰岛素C肽（前胰岛素分子中的第33至63位氨基酸序列）的三十一个氨基酸序列的多肽通过固相法被合成。产物依次通过凝胶过滤、DEAE-纤维素色谱法和高性能液相色谱法（HPLC）进行纯化。纯化后的物质在反相HPLC中表现为单一组分，呈现出正确的氨基酸比例，并且在免疫反应性和色谱行为上与天然人C肽无法区分。关于与HF切割相关可能发生的Asp-Leu序列上的α→β转肽反应，通过模型肽的研究表明，无论β-羧酸是自由状态还是被保护为苄酯状态，β-肽的形成率都为3-4%。
• Functionalization of Sulfonamide-Containing Peptides through Late-Stage Palladium-Catalyzed C(sp³)–H Arylation
  作者：Qingqing Bai、Jian Tang、Huan Wang

  DOI：10.1021/acs.orglett.9b01953

  日期：2019.8.2

  Bioactive peptides are emerging as promising candidates of clinic therapeutics. Here, we report a method for late-stage functionalization of sulfonamide-containing peptides through Pd-catalyzed C(sp3)–H arylation. In this protocol, the backbones of N-sulfonated peptides act as directing groups, which allows site-specific arylation of benzylsulfonamide moiety. This chemistry exhibits broad substrate

  生物活性肽正在成为临床疗法的有希望的候选者。在这里，我们报告了一种通过Pd催化的C（sp 3）–H芳基化对含磺酰胺肽进行后期官能化的方法。在该方案中，N-磺化肽的主链充当引导基团，其允许位点特异性芳基化苄基磺酰胺部分。这种化学方法具有广泛的底物范围，可用于合成肽-肽和肽-氨基酸缀合物。我们的研究结果突显了拟肽骨架在促进Pd催化功能化方面的潜力。
• The Steric Hindrance of the Stepwise Reaction of<i>N</i>-Carboxy α-Amino Acid Anhydride with the α-Amino Acid Ester
  作者：Masanao Oya、Tomoko Takahashi

  DOI：10.1246/bcsj.54.2705

  日期：1981.9

  The mechanisms of the reactions of 4-alkyloxazolidinediones (1) (N-carboxy α-amino acid anhydrides(NCAs)) with α-amino acid benzyl ester p-toluenesulfonates (2) were investigated in acetonitrile containing triethylamine at low and room temperatures. Two types of reactions were observed: (1) the polymerization of NCAs was initiated with a small amount of 2 to produce polypeptides (6), and (2) the dipeptide

  研究了 4-烷基恶唑烷二酮 (1) (N-羧基 α-氨基酸酐 (NCAs)) 与 α-氨基酸苄酯对甲苯磺酸酯 (2) 在低温和室温下在含三乙胺的乙腈中的反应机理。观察到两种类型的反应：（1）NCAs 的聚合反应是用少量的 2 引发的，产生多肽（6），（2）二肽苄酯（4）是通过 NCAs 与酯类。聚合和二肽形成 (1+2) 似乎都是由酯的氨基对 NCA 的 C-5 碳的亲核攻击引发的。当氨基酸酯 (R2) 的侧链比 NCA (R1) 的侧链更大时，聚合进行。相反，
• Antiherpetic agents
  申请人：Merck & Co., Inc.

  公开号：US05110799A1

  公开（公告）日：1992-05-05

  A series of carboxyl-containing N-alkyldipeptides have been found to posess antiviral potency--specifically against herpes simplex virus--by selectively inhibiting the viral ribonucleotide reductase enzyme.

  一系列含有羧基的N-烷基二肽已被发现具有抗病毒活性，特别是针对单纯疱疹病毒，通过选择性抑制病毒核糖核苷酸还原酶酶来实现。
• 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.