L-homotryptophan | 192003-01-3

• 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: L-homotryptophan
• 英文别名: L-β-homo-tryptophan；(3S)-3-azaniumyl-4-(1H-indol-3-yl)butanoate
• CAS: 192003-01-3
• 化学式: C₁₂H₁₄N₂O₂
• 分子量: 218.255
• InChiKey: DUVVFMLAHWNDJD-VIFPVBQESA-N

物化性质

• 沸点：
  462.3±35.0 °C(Predicted)
• 密度：
  1.311±0.06 g/cm3(Predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  -1.2
• 重原子数：
  16
• 可旋转键数：
  4
• 环数：
  2.0
• sp3杂化的碳原子比例：
  0.25
• 拓扑面积：
  79.1
• 氢给体数：
  3
• 氢受体数：
  3

安全信息

• WGK Germany：
  3
• 海关编码：
  2933990090

SDS

Material Safety Data Sheet

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Section 1. Identification of the substance
Product Name: L-Beta-homotryptophan, HCl
Synonyms:

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Section 2. Hazards identification
Harmful by inhalation, in contact with skin, and if swallowed.

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Section 3. Composition/information on ingredients.
Ingredient name: L-Beta-homotryptophan, HCl
CAS number: 192003-01-3

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Section 4. First aid measures
Skin contact: Immediately wash skin with copious amounts of water for at least 15 minutes while removing
contaminated clothing and shoes. If irritation persists, seek medical attention.
Eye contact: Immediately wash skin with copious amounts of water for at least 15 minutes. Assure adequate
flushing of the eyes by separating the eyelids with fingers. If irritation persists, seek medical
attention.
Inhalation: Remove to fresh air. In severe cases or if symptoms persist, seek medical attention.
Ingestion: Wash out mouth with copious amounts of water for at least 15 minutes. Seek medical attention.

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Section 5. Fire fighting measures
In the event of a fire involving this material, alone or in combination with other materials, use dry
powder or carbon dioxide extinguishers. Protective clothing and self-contained breathing apparatus
should be worn.

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Section 6. Accidental release measures
Personal precautions: Wear suitable personal protective equipment which performs satisfactorily and meets local/state/national
standards.
Respiratory precaution: Wear approved mask/respirator
Hand precaution: Wear suitable gloves/gauntlets
Skin protection: Wear suitable protective clothing
Eye protection: Wear suitable eye protection
Methods for cleaning up: Mix with sand or similar inert absorbent material, sweep up and keep in a tightly closed container
for disposal. See section 12.
Environmental precautions: Do not allow material to enter drains or water courses.

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Section 7. Handling and storage
Handling: This product should be handled only by, or under the close supervision of, those properly qualified
in the handling and use of potentially hazardous chemicals, who should take into account the fire,
health and chemical hazard data given on this sheet.
Store in closed vessels.
Storage:

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Section 8. Exposure Controls / Personal protection
Engineering Controls: Use only in a chemical fume hood.
Personal protective equipment: Wear laboratory clothing, chemical-resistant gloves and safety goggles.
General hydiene measures: Wash thoroughly after handling. Wash contaminated clothing before reuse.

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Section 9. Physical and chemical properties
Appearance: Not specified
Boiling point: No data
No data
Melting point:
Flash point: No data
Density: No data
Molecular formula: C12H14N2O2.ClH
Molecular weight: 254.7

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Section 10. Stability and reactivity
Conditions to avoid: Heat, flames and sparks.
Materials to avoid: Oxidizing agents.
Possible hazardous combustion products: Carbon monoxide, nitrogen oxides, hydrogen chloride.

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Section 11. Toxicological information
No data.

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Section 12. Ecological information
No data.

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Section 13. Disposal consideration
Arrange disposal as special waste, by licensed disposal company, in consultation with local waste
disposal authority, in accordance with national and regional regulations.

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Section 14. Transportation information
Non-harzardous for air and ground transportation.

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Section 15. Regulatory information
No chemicals in this material are subject to the reporting requirements of SARA Title III, Section
302, or have known CAS numbers that exceed the threshold reporting levels established by SARA
Title III, Section 313.

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SECTION 16 - ADDITIONAL INFORMATION
N/A

反应信息

• 作为反应物：
  描述：

  L-homotryptophan 在 O-(1H-benzotriazol-1-yl)-N,N,N',N'-tetramethyluronium hexafluorophosphate 、 N,N-二异丙基乙胺 、 sodium hydroxide 作用下， 以 二氯甲烷 为溶剂， 反应 12.0h， 生成 N-(N-benzoyl-L-β-homotryptophanyl)-D-phenylalanine methyl ester
  参考文献：
  名称：

  含色氨酸的二肽衍生物作为甲酰肽受体1拮抗剂的设计与合成†

  摘要：

  我们以前的研究确定了Fmoc-（S，R）-色氨酸的二肽衍生物1，该衍生物选择性地抑制由N诱导的嗜中性白细胞弹性蛋白酶的释放。甲酰基大号-methionyl-大号-leucyl-大号苯基丙氨酸（FMLP）在人类嗜中性粒细胞中。为了提高药理活性，合成了一系列含色氨酸的二肽，并研究了它们在人嗜中性粒细胞中的药理活性。在这些中，五种化合物3，6，图19A，24A，和24B显示出有效的和双重抑制上fMLP诱导超氧阴离子（O效果2 ˙ - ）的产生和嗜中性弹性蛋白酶的释放在嗜中性粒细胞与IC 50分别为0.23 / 0.60、1.88 / 2.47、1.87 / 3.60、0.12 / 0.37和1.32 / 1.03μM。进一步的研究表明，这些二肽抑制人中性粒细胞超氧化物的产生与甲酰肽受体1（FPR1）的选择性抑制有关。此外，结构-活性关系研究的结果表明，片段N-苯甲酰-Trp-Phe-OMe（3）

  DOI：

  10.1039/c3ob40215k
• 作为产物：
  描述：

  (ΒS)-Β-[[(9H-芴-9-甲氧基)羰基]氨基]-1H-吲哚-3-丁酸 在 哌啶 作用下， 以 二氯甲烷 为溶剂， 反应 6.0h， 生成 L-homotryptophan
  参考文献：
  名称：

  含色氨酸的二肽衍生物作为甲酰肽受体1拮抗剂的设计与合成†

  摘要：

  我们以前的研究确定了Fmoc-（S，R）-色氨酸的二肽衍生物1，该衍生物选择性地抑制由N诱导的嗜中性白细胞弹性蛋白酶的释放。甲酰基大号-methionyl-大号-leucyl-大号苯基丙氨酸（FMLP）在人类嗜中性粒细胞中。为了提高药理活性，合成了一系列含色氨酸的二肽，并研究了它们在人嗜中性粒细胞中的药理活性。在这些中，五种化合物3，6，图19A，24A，和24B显示出有效的和双重抑制上fMLP诱导超氧阴离子（O效果2 ˙ - ）的产生和嗜中性弹性蛋白酶的释放在嗜中性粒细胞与IC 50分别为0.23 / 0.60、1.88 / 2.47、1.87 / 3.60、0.12 / 0.37和1.32 / 1.03μM。进一步的研究表明，这些二肽抑制人中性粒细胞超氧化物的产生与甲酰肽受体1（FPR1）的选择性抑制有关。此外，结构-活性关系研究的结果表明，片段N-苯甲酰-Trp-Phe-OMe（3）

  DOI：

  10.1039/c3ob40215k

文献信息

• Biochemical Investigations of Two 6-DMATS Enzymes from<i>Streptomyces</i>Reveal New Features of<scp>L</scp>-Tryptophan Prenyltransferases
  作者：Julia Winkelblech、Shu-Ming Li

  DOI：10.1002/cbic.201400046

  日期：2014.5.5

  6‐DMATSSa and 6‐DMATSSv from Streptomyces strains, in the presence of DMAPP and GPP. C6‐prenylated indole derivatives and dihydroxynaphthalenes with prenylation at the unsubstituted ring were identified as enzyme products of 6‐DMATSSa.

  他们可以做更多： 大号-色氨酸（1）和其衍生物以及羟基萘等2,3-二羟基萘（10）由6- DMATS被接受萨和6- DMATS SV从链霉菌属菌株，DMAPP的存在和GPP。C6-prenylated吲哚衍生物和未取代环上带有prenylation的二羟基萘被鉴定为6-DMATS Sa的酶产物。
• Biochemical Characterization of Indole Prenyltransferases
  作者：Xia Yu、Yan Liu、Xiulan Xie、Xiao-Dong Zheng、Shu-Ming Li

  DOI：10.1074/jbc.m111.317982

  日期：2012.1

  respectively. Average turnover number (k(cat)) at 1.1 s(-1) was calculated from kinetic data of L-tryptophan and DMAPP. Catalytic efficiencies of 5-dimethylallyltryptophan synthase for L-tryptophan at 25,588 s(-1).M(-1) and for other 11 simple indole derivatives up to 1538 s(-1).M(-1) provided evidence for its potential usage as a catalyst for chemoenzymatic synthesis.

  属于二甲基烯丙基色氨酸合酶超家族的假定异戊二烯转移酶基因 ACLA_031240 在棒状曲霉的基因组序列中得到鉴定，并在大肠杆菌中过表达。可溶性 His 标签蛋白 EAW08391 被纯化至接近同质，并用于在不同异戊二烯二磷酸存在下对不同芳香底物进行生化研究。结果表明，在二甲基烯丙基二磷酸 (DMAPP) 存在下，重组酶可以很好地接受以 L-色氨酸为最佳底物的简单吲哚衍生物。还观察到含有色氨酸的环状二肽的产物形成，但转化率低得多。相反，在 L-色氨酸与香叶基或法呢基二磷酸的反应混合物中未检测到产物形成。通过 NMR 和 MS 分析对酶产物进行结构解析，明确证明了简单吲哚衍生物的吲哚核 C-5 处高度区域特异性的规则异戊二烯化。因此，EAW08391 被称为 5-二甲基烯丙基色氨酸合酶，它填补了吲哚异戊二烯转移酶工具箱中关于异戊二烯化位置的最后一个空白。分别为 L-色氨酸和 DMAPP 确定了
• Characterisation of 6-DMATS_Mo from Micromonospora olivasterospora leading to identification of the divergence in enantioselectivity, regioselectivity and multiple prenylation of tryptophan prenyltransferases
  作者：Julia Winkelblech、Xiulan Xie、Shu-Ming Li

  DOI：10.1039/c6ob01803c

  日期：——

  secondary metabolites including indole derivatives usually demonstrate improved biological and pharmacological activities, which make them promising candidates for drug discovery and development. The transfer reactions of a prenyl moiety from a prenyl donor, e.g. dimethylallyl diphosphate (DMAPP), to an acceptor is catalysed by prenyltransferases. One special group of such enzymes uses DMAPP and tryptophan

  包括吲哚衍生物在内的异戊二烯基次生代谢产物通常表现出改善的生物学和药理活性，这使其成为有希望的药物发现和开发候选者。异戊二烯基转移酶催化异戊二烯基部分从异戊二烯供体例如二甲基烯丙基二磷酸酯（DMAPP）到受体的转移反应。其中一类特殊的酶使用DMAPP和色氨酸作为底物，以二甲基烯丙基色氨酸作为反应产物，因此起二甲基烯丙基色氨酸合酶（DMATS）的作用。与来自链霉菌的已知色氨酸异戊二烯基转移酶的序列同源性搜索导致鉴定了微小单孢菌中的假定的异戊二烯基转移酶基因MolI14.36。。表达和生化研究表明，MolI14.36充当色氨酸C 6异戊烯基转移酶（6-DMATS Mo）。对6-DMATS Mo的底物特异性的研究显示出对D-色氨酸的显着高活性，这促使我们进行了对其他DMATS的对映选择性，区域选择性和多重烯丙基化能力的比较研究，包括FgaPT2、5-DMATS，5-DMATS Sc，色氨酸及其类似物的L-和D-异构体的6-DMATS
• Δ5-Cholenoyl-amino acids as selective and orally available antagonists of the Eph–ephrin system
  作者：Riccardo Castelli、Massimiliano Tognolini、Federica Vacondio、Matteo Incerti、Daniele Pala、Donatella Callegari、Simona Bertoni、Carmine Giorgio、Iftiin Hassan-Mohamed、Ilaria Zanotti、Antonella Bugatti、Marco Rusnati、Claudio Festuccia、Silvia Rivara、Elisabetta Barocelli、Marco Mor、Alessio Lodola

  DOI：10.1016/j.ejmech.2015.08.048

  日期：2015.10

  developing small-molecule antagonists of the Eph receptors are still in their initial stage as available compounds suffer from pharmacological drawbacks, limiting their application in vitro and in vivo. In the present work, we report the design, synthesis and evaluation of structure-activity relationships of a class of Δ(5)-cholenoyl-amino acid conjugates as Eph-ephrin antagonists. As a major achievement

  Eph受体-ephrin系统是新型抗血管生成疗法发展的新兴目标。旨在开发Eph受体小分子拮抗剂的研究计划仍处于起步阶段，因为可用的化合物存在药理学缺陷，限制了它们在体内和体外的应用。在目前的工作中，我们报告设计，合成和评估一类Δ（5）-胆酰基-氨基酸缀合物作为Eph-ephrin拮抗剂的结构-活性关系。作为我们探索的一项重大成就，我们确定了N-（3β-羟基-Δ（5）-cholen-24-oyl）-L-色氨酸（UniPR1331）是有效的Eph-ephrin系统小分子拮抗剂。内皮细胞中的抗血管生成剂
• Antibody peptide conjugates that have agonist activity at both the glucagon and glucagon-like peptide 1 receptors
  申请人：Merck Sharp & Dohme Corp.

  公开号：US10800826B2

  公开（公告）日：2020-10-13

  Described are antibody peptide conjugates (APCs) comprising an antibody conjugated to a peptide analog of glucagon, which have been modified to be resistant to cleavage and inactivation by dipeptidyl peptidase IV (DPP-IV) and to increase in vivo half-life of the peptide analog while enabling the peptide analog to have agonist activity at the glucagon (GCG) receptor and the glucagon-like peptide 1 (GLP-1) receptor and the use of such APCs for treatment of metabolic disorders such as diabetes, non-alcoholic fatty liver disease (NAFLD), non-alcoholic steatohepatitis (NASH), and obesity.

  所述抗体多肽共轭物（APCs）包括与胰高血糖素多肽类似物共轭的抗体、经改良后可抗二肽基肽酶 IV（DPP-IV）的裂解和失活，并可延长肽类似物的体内半衰期，同时使肽类似物在胰高血糖素（GCG）受体和胰高血糖素样肽 1（GLP-1）受体上具有激动剂活性、非酒精性脂肪肝（NAFLD）、非酒精性脂肪性肝炎（NASH）和肥胖症等代谢性疾病。