hydroxytyrosyl laurate

• 分子结构分类: 有机化合物 - 苯类化合物 - 酚类
• 英文名称: hydroxytyrosyl laurate
• 英文别名: 3,4-dihydroxyphenethyl dodecanoate；2-(3,4-Dihydroxyphenyl)ethyl dodecanoate
• 化学式: C₂₀H₃₂O₄
• 分子量: 336.472
• InChiKey: FOFOXHCNCGPZSK-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  5
• 重原子数：
  24
• 可旋转键数：
  14
• 环数：
  1.0
• sp3杂化的碳原子比例：
  0.65
• 拓扑面积：
  66.8
• 氢给体数：
  2
• 氢受体数：
  4

反应信息

• 作为产物：
  描述：

  月桂酸甲酯 、 羟基酪醇 在 Novozym 435 作用下， 以 叔丁醇 为溶剂， 反应 24.0h， 生成 hydroxytyrosyl laurate
  参考文献：
  名称：

  橄榄油副产物中羟基酪醇油酸酯（具有抗炎特性的羟基酪醇衍生物）的鉴定

  摘要：

  评价了具有短，中和长酰基链的羟基酪氨酸酯减少脂多糖刺激的RAW264.7巨噬细胞减少一氧化氮（NO）产生的能力。在测试的化合物中，发现C18酯，即硬脂酸羟基酪氨酯（HtySte）和油酸羟基酪氨酯（HtyOle），以浓度依赖的方式降低NO的产生，而其他化合物（包括母体羟基酪醇）在测试浓度下无效。范围（0.5-5μM）。对HtyOle潜在的免疫调节特性的进一步研究表明，前列腺素E 2具有明显的浓度依赖性。生产。在转录水平上，HtyOle抑制诱导型NO合酶，环氧合酶2和白介素1β的表达。此外，通过高效液相色谱-质谱联用，首次在橄榄油副产品中鉴定出HtyOle。相比之下，完整橄榄中未发现HtyOle。我们的结果表明，HtyOle是在石油加工过程中形成的，代表了其中存在羟基酪醇的重要形式。

  DOI：

  10.1016/j.foodchem.2018.12.007

文献信息

• Tyrosol and hydroxytyrosol derivatives as antitrypanosomal and antileishmanial agents
  作者：Efres Belmonte-Reche、Marta Martínez-García、Pablo Peñalver、Verónica Gómez-Pérez、Ricardo Lucas、Francisco Gamarro、José María Pérez-Victoria、Juan Carlos Morales

  DOI：10.1016/j.ejmech.2016.04.047

  日期：2016.8

  Existing treatments have considerable side effects and increase resistance of the parasites. We have measured antitrypanosomal and antileishmanial activity of natural phenols, tyrosol (TYR) and hydroxytyrosol (HT) and several of their esters and metabolites. We found significant IC50 values against Trypanosoma brucei for HT decanoate ester and HT dodecanoate ester (0.6 and 0.36 μM, respectively). This represents

  锥虫病和利什曼病一直是非洲国家健康和发展的真正挑战。现有疗法具有相当大的副作用并增加了寄生虫的抵抗力。我们已经测量了天然酚，酪醇（TYR）和羟基酪醇（HT）以及它们的一些酯和代谢物的抗胰锥虫和抗疟疾活性。我们发现针对布鲁氏锥虫的有效IC 50值用于HT癸酸酯和HT十二酸酯（分别为0.6和0.36μM）。这表示相对于HT的活性大大增加（分别为79和132倍）。此外，两种化合物均对非肿瘤性人类细胞系MRC-5（分别为118和106）表现出高选择性。然后，我们合成了一个有针对性的化合物库，以探索结构活性。我们发现HT癸酸酯和HT十二酸酯的醚和硫脲类似物在低微摩尔范围内也显示出针对布鲁氏杆菌的IC 50值。总之，二邻苯酚环和中等大小的烷基链对于活性至关重要，而它们之间化学键的性质似乎不太重要。
• Lipase-Produced Hydroxytyrosyl Eicosapentaenoate is an Excellent Antioxidant for the Stabilization of Omega-3 Bulk Oils, Emulsions and Microcapsules
  作者：Taiwo Akanbi、Colin Barrow

  DOI：10.3390/molecules23020275

  日期：——

  In this study, several lipophilic hydroxytyrosyl esters were prepared enzymatically using immobilized lipase from Candida antarctica B. Oxidation tests showed that these conjugates are excellent antioxidants in lipid-based matrices, with hydroxytyrosyl eicosapentaenoate showing the highest antioxidant activity. Hydroxytyrosyl eicosapentaenoate effectively stabilized bulk fish oil, fish-oil-in-water emulsions and microencapsulated fish oil. The stabilizing effect of this antioxidant may either be because it orients itself with the omega-3 fatty acids in the oil, thereby protecting them against oxidation, or because this unstable fatty acid can preferentially oxidise, thus providing an additional mechanism of antioxidant protection. Hydroxytyrosyl eicosapentaenoate itself was stable for one year when stored at −20 °C.

  在本研究中，采用来自南极酵母B的固定化脂肪酶酶法制备了几种亲脂性羟基酪醇酯。氧化测试表明，这些结合物在脂质基质中表现出优异的抗氧化性能，其中羟基酪醇二十烯酸酯展现出最高的抗氧化活性。羟基酪醇二十烯酸酯有效稳定了大宗鱼油、鱼油水乳液和微胶囊鱼油。该抗氧化剂的稳定作用可能是因为它与油中的 omega-3 脂肪酸排列在一起，从而保护它们免受氧化，或者是因为这种不稳定的脂肪酸能够优先氧化，从而提供额外的抗氧化保护机制。羟基酪醇二十烯酸酯在 -20 °C 存储时本身稳定性可达一年。
• Lignin Nanoparticles Support Lipase‐Tyrosinase Enzymatic Cascade in the Synthesis of Lipophilic Hydroxytyrosol Ester Derivatives
  作者：Elisabetta Tomaino、Eliana Capecchi、Davide Piccinino、Raffaele Saladino

  DOI：10.1002/cctc.202200380

  日期：2022.9.20

  Enzyme catalysis: Layer-by-layer functionalized lignin nanoparticles acts as a sustainable platform in the lipase M and tyrosinase cascade synthesis of bioactive lipophilic hydroxytyrosol esters from tyrosol and long side-chain carboxylic acids under organic solvent conditions.

  酶催化：在有机溶剂条件下，由酪醇和长侧链羧酸合成生物活性亲脂性羟基酪醇酯的脂肪酶 M 和酪氨酸酶级联合成中，逐层功能化木质素纳米颗粒充当了可持续的平台。
• Synthesis of Bioactive Hydroxytyrosol Esters via Multienzyme Cascade on Electroactive Melanin Lignin Nanoparticles: A One‐Pot Approach without Extra Reducing Agents
  作者：Davide Piccinino、Valentina Ubertini、Eliana Capecchi、Elisabetta Tomaino、Valeria Gigli、Raffaele Saladino

  DOI：10.1002/cctc.202300533

  日期：2023.7.21

  A one‐pot strategy for the synthesis of bioactive hydroxytyrosol esters from tyrosol and lipophilic carboxylic acids has been developedviamultienzyme cascade immobilized on electroactive melanin lignin nanoparticles. The novel catalyst involved the co‐immobilization of lipase and tyrosinase on the polyphenolic support and was operative in the presence of sustainable 2‐methyltetrahydrofuran as organic reaction solvent. The system did not require the use of extra reducing agents for the selective synthesis of catechols. Optoelectronic and electrochemical studies suggested the role played by melanin lignin nanoparticles in the regeneration of the active site of tyrosinase from unproductivemet‐form to reversibledeoxy/oxy‐form. This effect improved the overall activity of tyrosinase in the multienzyme cascade favouring the reduction of undesired quinones to corresponding catechols.

  摘要 开发了一种以酪醇和亲脂性羧酸为原料合成生物活性羟基酪醇酯的单锅策略，该策略是将多酶级联固定在具有电活性的黑色素木质素纳米颗粒上。这种新型催化剂将脂肪酶和酪氨酸酶共同固定在多酚载体上，并可在可持续的 2-甲基四氢呋喃作为有机反应溶剂的情况下工作。该系统在选择性合成儿茶酚时无需使用额外的还原剂。光电和电化学研究表明，黑色素木质素纳米颗粒在将酪氨酸酶的活性位点从非生产性的金属形式再生为可逆的乙氧基/氧形式方面发挥了作用。这种作用提高了酪氨酸酶在多酶级联中的整体活性，有利于将不需要的醌还原为相应的儿茶酚。
• Surface-Active Properties of Lipophilic Antioxidants Tyrosol and Hydroxytyrosol Fatty Acid Esters: A Potential Explanation for the Nonlinear Hypothesis of the Antioxidant Activity in Oil-in-Water Emulsions
  作者：Ricardo Lucas、Francisco Comelles、David Alcántara、Olivia S. Maldonado、Melanie Curcuroze、Jose L. Parra、Juan C. Morales

  DOI：10.1021/jf1009928

  日期：2010.7.14

  Our group has recently observed a nonlinear tendency in antioxidant capacity of different hydroxytyrosol fatty acid esters in fish oil-in-water emulsions, where a maximum of antioxidant efficiency appeared for hydroxytyrosol octanoate. These results appear to disagree with the antioxidant polar paradox. Because the physical location of the antioxidants in an oil water interface has been postulated as an important factor in explaining this behavior, we have prepared a series of tyrosol and hydroxytyrosol fatty acid esters with different chain length and studied their surface-active properties in water, because these physicochemical parameters could be directly related to the preferential placement at the interface. We have found that tyrosol and hydroxytyrosol fatty acid esters are relevant surfactants when the right hydrophilic-lipophilic balance (HLB) is attained and, in some cases, as efficient as emulsifiers commonly used in industry, such as Brij 30 or Tween 20. Moreover, a nonlinear dependency of surfactant effectiveness is observed with the increase in chain length of the lipophilic antioxidants. This tendency seems to fit quite well with the reported antioxidant activity in emulsions, and the best antioxidant of the series (hydroxytyrosol octanoate) is also a very effective surfactant. This potential explanation of the nonlinear hypothesis will help in the rational design of antioxidants used in oil-in-water emulsions.