Asn-OBzl hydrochloride | 69863-43-0

• 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: Asn-OBzl hydrochloride
• 英文别名: asparagine benzyl ester hydrochloride；Asn-OBzl*HCl；HCl*Asn-OBzl；L-asparagine benzyl ester; hydrochloride；L-Asparagin-benzylester; Hydrochlorid；benzyl (2S)-2,4-diamino-4-oxobutanoate;hydrochloride
• CAS: 69863-43-0
• 化学式: C₁₁H₁₄N₂O₃*ClH
• 分子量: 258.705
• InChiKey: NFVQGRDBPMYFAL-FVGYRXGTSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  0.35
• 重原子数：
  17
• 可旋转键数：
  6
• 环数：
  1.0
• sp3杂化的碳原子比例：
  0.27
• 拓扑面积：
  95.4
• 氢给体数：
  3
• 氢受体数：
  4

反应信息

• 作为反应物：
  描述：

  Asn-OBzl hydrochloride 在 HOBt-6-carboxamidomethyl polystyrene 、 N,N-二异丙基乙胺 、 三氟乙酸 作用下， 反应 1.17h， 生成 (S)-4-Amino-4-((S)-1-benzyloxycarbonyl-2-carbamoyl-ethylcarbamoyl)-butyric acid cyclohexyl ester; compound with trifluoro-acetic acid
  参考文献：
  名称：

  Thymosin-like peptides as potential immunostimulants. Synthesis via the polymeric-reagent method

  摘要：

  This paper reports our attempt at designing new immunostimulating peptides which are chemically related to the bioactive peptides thymosin alpha 1 and thymopentin. Three peptides were synthesized, Asp-Leu-Lys-Glu-Arg-Lys-Asp-Val-Tyr (3), Arg-Lys-Asp-Val-Tyr-Glu-Glu-Ala-Glu-Asn (2), and Asp-Leu-Lys-Glu-Arg-Lys-Asp-Val-Tyr-Glu-Glu-Ala-Glu-Asn (1), each of which contains the thymopentin sequence and portions of the bioactive sequence of thymosin alpha 1. Peptides 1-3 were assembled from selected blocked fragments that were synthesized by the polymeric-reagent method, using PHBT (polystyrene-bound 1-hydroxybenzotriazole) as the activating polymer. The ability of peptides 1-3 to enhance the activation (RNA synthesis) and proliferation (DNA synthesis) of human T lymphocytes was determined. In comparison to thymosin alpha 1, thymosin alpha 1 (15-28), and thymopentin, peptides 1-3 did not show significant enhancement of these processes.

  DOI：

  10.1021/jm00163a057
• 作为产物：
  描述：

  L-天冬酰胺 、 苯甲醇 在 sodium carbonate 、 盐酸 作用下， 以 水 、 乙醚 为溶剂， 生成 Asn-OBzl hydrochloride
  参考文献：
  名称：

  A class of novel carboline intercalators: Their synthesis, in vitro anti-proliferation, in vivo anti-tumor action, and 3D QSAR analysis

  摘要：

  Based on DOCK scores 18 N-(3-benzyloxycarbonylcarboline-1-yl) ethylamino acid benzylesters (6a-r) were synthesized as anti-tumor agents. Their IC50 values against five human carcinoma cell lines ranged from 11.1 mu M to more than 100 mu M. The in vivo assay identified five derivatives of them had no antitumor action, the anti-tumor activity of nine derivatives of them equaled that of cytarabine, and the anti-tumor activity of three derivatives of them was higher than that of cytarabine. The UV and fluorescence spectra, as well as the relative viscosity and melting temperature measurements of calf thymus DNA (CT DNA) with and without the representative compound suggested that DNA intercalation could be their action mechanism. The 3D QSAR analysis of N-(3-benzyloxycarbonylcarboline-1-yl) ethylamino acid benzylesters (6a-r) revealed that their in vivo anti-tumor activity significantly depends on the molecular electrostatic and steric fields of the side chain of the amino acid residue. Crown Copyright (C) 2010 Published by Elsevier Ltd. All rights reserved.

  DOI：

  10.1016/j.bmc.2010.07.043

文献信息

• A class of Trp-Trp-AA-OBzl: Synthesis, in vitro anti-proliferation/in vivo anti-tumor evaluation, intercalation-mechanism investigation and 3D QSAR analysis
  作者：Xiaoyi Zhang、Yifan Yang、Ming Zhao、Liu Liu、Meiqing Zheng、Yuji Wang、Jianhui Wu、Shiqi Peng

  DOI：10.1016/j.ejmech.2011.05.004

  日期：2011.8

  cytarabine. In acute toxicity assay Trp-Trp-AA-OBzls did not damage the immunologic function and had an LD50 of more than 500 mg/kg. The relationships of structure and activity were analyzed with 3D QSAR. The action mechanism studies revealed that the in vivo anti-tumor action of Trp-Trp-AA-OBzls was the result of DNA intercalation.

  从抗肿瘤活性的N-色氨酸-β-咔啉-3-羧酸苄酯和β-咔啉-3-羰基色氨酸苄酯中，提取了药效团Trp-Trp-OBzl。根据DOCK分数，将氨基酸残基插入Trp-Trp-OBzl的C末端，并提供二十种Trp-Trp-AA-OBzl（AA =氨基酸残基）作为DNA嵌入剂。在体外和体内模型17的Trp-TRP-AA-OBzls是抗肿瘤活性，和12的Trp-TRP-AA-OBzls比阿糖胞苷更活跃。在急性毒性试验中，Trp-Trp-AA-OBzls不会破坏免疫功能，LD 50大于500 mg / kg。使用3D QSAR分析了结构和活性之间的关系。行动机制研究表明，Trp-Trp-AA-OBzls的体内抗肿瘤作用是DNA嵌入的结果。
• A new class of anti-thrombosis hexahydropyrazino-[1′,2′:1,6]pyrido-[3,4-b]-indole-1,4-dions: Design, synthesis, logK determination, and QSAR analysis
  作者：Jiawang Liu、Guofeng Wu、Guohui Cui、Wei-Xuan Wang、Ming Zhao、Chao Wang、Ziding Zhang、Shiqi Peng

  DOI：10.1016/j.bmc.2007.06.012

  日期：2007.9.1

  (tetrahydro-beta-carboline-3-carboxy-l-amino acid benzylesters, 2-aminoacyltetrahydro-beta-carboline-3-carboxylic acid benzylesters) were prepared and used for the cyclization to form 5a-t. Coupling hydrochloric acid salt of tetrahydro-beta-carboline-3-carboxylic acid esters and Boc-amino acids in the reported literature usually generates very low yield products accompanied by racemization. However, in our case, the

  基于N-[（3S）]-1,2,3,4-四氢-β-咔啉-3-羧基] -1-赖氨酸在乙酸水溶液（5％）和大鼠中的环化血浆给出了相同的产物，并假设环化产物具有抗血栓活性，我们报道了20种六氢吡嗪并[1'，2'：1,6]吡啶并[ 3,4-b]吲哚-1,4-dion（5a-t）作为潜在的抗血栓形成剂。制备了两种中间体（四氢-β-咔啉-3-羧基-1-氨基酸苄酯，2-氨基酰基四氢-β-咔啉-3-羧酸苄酯），并用于环化形成5a-t。在已报道的文献中，四氢-β-咔啉-3-羧酸酯的盐酸盐与Boc-氨基酸的偶联通常产生非常低的收率产物，并伴随着消旋作用。然而，在我们的情况下，四氢-β-咔啉-3-羧酸苄酯的游离碱以高收率且没有外消旋作用产生了所需的产物。来自体外和体内研究的抗血栓形成结果表明，5a-t可能是一类新型的抗血栓形成剂，口服有效有效浓度为0.5μmol/ kg。此外，使用e-dragon服务器生成的分子
• 苯并咪唑喹唑啉水杨酰氨基酸苄酯、其制备、 抗肿瘤活性及应用
  申请人：首都医科大学

  公开号：CN107629056B

  公开（公告）日：2020-01-14

  本发明公开了通式Ι代表的20种化合物,公开了它们的制备方法,还公开了它们的抗肿瘤活性和抗血栓活性。通式Ι代表的20种化合物具有抗肿瘤和抗血栓双重作用，可用于制备抗肿瘤和抗血栓剂。
• 具有抗肿瘤转移和抗炎活性的新型吲哚类化 合物，其合成和应用
  申请人：首都医科大学

  公开号：CN106349148B

  公开（公告）日：2019-07-05

  本发明公开了通式I代表的20种5‑(双(3‑(2‑羟乙基)‑1H‑吲哚‑2)甲基)‑2‑羟基苯甲酰‑AA‑OBzl，公开了它们的制备方法，公开了它们抑制肿瘤细胞侵袭和转移作用，公开了它们抑制荷S180瘤小鼠瘤体增重的活性，公开了它们抗肿瘤肺转移活性和抗炎活性。本发明的化合物在制备抗肿瘤药物，抗肿瘤转移药物和抗炎药物中具有良好的应用前景。
• Dual-acting agents that possess reversing resistance and anticancer activities: Design, synthesis, MES-SA/Dx5 cell assay, and SAR of Benzyl 1,2,3,5,11,11a-hexahydro-3,3-dimethyl-1-oxo-6H-imidazo[3′,4′:1,2]pyridin[3,4-b]indol-2-substitutedacetates
  作者：Jiawang Liu、Guohui Cui、Ming Zhao、Chunying Cui、Jingfang Ju、Shiqi Peng

  DOI：10.1016/j.bmc.2007.08.061

  日期：2007.12

  Based on the structural analysis of fumitremorgin C (FTC), imidazoline and beta-carboline amino acid benzylester, 14 novel 2-substitutedtetracyclic derivatives of tetrahydrocarboline 4a-n were prepared. We demonstrated that the exposure of MES-SA/Dx5 cells to some of 4a-n resulted in significant reduction of resistance of the cells against doxorubicin. This reduced resistance was accompanied by lowering of IC50 value to doxorubicin from 1.55 +/- 0.26 mu mol/L to 0.33 +/- 0.05 mu mol/L for 2-(2-butyl)-derivative 4c, to 1.03 +/- 0.22 mu mol/L for 2-methyl-derivative 4d, to 0.46 +/- 0.04 mu mol/L for 2-benzyl-derivative 4f, to 0.98 +/- 0.25 mu mol/L for 2-indole-3-yl-methyl-derivative 4h, to 0.36 +/- 0.03 mu mol/L for 2-benzyloxycarbonylmethyl- derivative 4i, to 0.77 +/- 0.08 mu mol/L for 2-benzyloxycarbonylethyl-derivative 4j, and to 0.77 +/- 0.08 mu mol/L for 2-benzyloxycarbonylamino-n-butyl-derivative 4l. Proliferation assays of 4a-n indicated 4c, f, i, j were able to inhibit the proliferation of doxorubicin resistant MES-SA/Dx5 cells. The SAR analysis revealed that the benzylester form and the tetracyclic structure of 4a-n were critical for both sensitizing doxorubicin and the cellular anti-proliferative effect. (c) 2007 Elsevier Ltd. All rights reserved.