从迈克尔反应中获得的新型盐的抗血小板活性和毒性概况
Asma Haffouz1, Haitham Elleuch2, Bassem Khemakhem3
1Laboratory of Molecular Biotechnology of Eucaryotes, Centre of Biotechnology of Sfax, University of Sfax, B.P 1177, 3018, Sfax, Tunisia.
概括
新型盐通过抑制血小板聚合和激活,显示出显著的抗血小板活性. 化合物2a,2c和2d是无毒的,具有治疗心血管疾病的潜力.
科学领域:
- 药用化学 医学化学
- 药理学 药理学是指药理学的学科.
- 心血管研究研究心血管研究
背景情况:
- 血小板聚合是血栓性心血管疾病的关键因素.
- 开发具有提高效率和安全性的新型抗血小板药物至关重要.
- 酸盐代表了一类潜在的治疗化合物.
研究的目的:
- 合成和选新型盐的抗血小板活性.
- 为了研究活性化合物的作用机制.
- 评估有前途的候选人的安全概况.
主要方法:
- 通过迈克尔反应合成五种新型盐.
- 在体外评估抗血小板活性对ADP和原.
- 对CD62-P表达和GPIIb/IIIa激活的影响的评估.
- 用P2Y12和GPVI受体进行的in silico分子对接研究.
- 对血小板,红细胞和HEK293细胞的细胞毒性测定.
主要成果:
- 化合物2a,2b,2c和2d显著抑制了血小板聚合 (P < 0.001).
- 化合物2c特别抑制了阿拉基酸通路 (P < 0.001).
- 活性化合物降低了CD62-P表达和GPIIb/IIIa激活.
- 分子对接显示出对P2Y12和GPVI受体的强烈亲和力.
- 化合物2a,2c和2d没有显著的细胞毒性.
结论:
- 新型盐表现出强大的抗血小板性质.
- 化合物2a,2c和2d被确定为有前途的无毒抗血小板剂.
- 这些化合物具有开发心血管疾病新疗法的潜力.
相关概念视频
Diazonium Group Substitution: –OH and –H
2.8K
Nitrous acid, a weak acid, is prepared in situ via the reaction of sodium nitrite with a strong acid under cold conditions. This nitrous acid prepared in situ reacts with primary arylamines to form arenediazonium salts. Such reactions are known as diazotization reactions. As shown in Figure 1, the formation of arenediazonium salts begins with the decomposition of nitrous acid in an acidic solution to give nitrosonium ions.
2.8K
Conjugate Addition of Enolates: Michael Addition
2.5K
The attack of a nucleophile at the β carbon of an α,β-unsaturated carbonyl compound is called conjugate addition. Conjugate addition reactions of active methylene compounds, such as β-diketones, β-keto esters, β-keto nitriles, and α-nitro ketones, are called Michael addition reactions.
2.5K
Antiplatelet Drugs: Prostaglandin Synthesis, P2Y12 and Glycoprotein IIb/IIIa Inhibitors
526
Antiplatelet drugs emerge as frontline defenders against the insidious threat of thromboembolic diseases, where abnormal clots obstruct vital blood vessels. These drugs stand as bulwarks, inhibiting platelet aggregation and clot formation, thereby mitigating the risk of life-threatening conditions like myocardial infarction, coronary artery disease, and thrombotic strokes.
Prostaglandin synthesis inhibitors, exemplified by the widely known aspirin, wield their power by irreversibly acetylating...
Prostaglandin synthesis inhibitors, exemplified by the widely known aspirin, wield their power by irreversibly acetylating...
526
Nucleophilic Aromatic Substitution of Aryldiazonium Salts: Aromatic SN1
2.1K
Treating arylamines with nitrous acid gives aryldiazonium salts that are effective substrates in nucleophilic aromatic substitution reactions. The diazonio group in these salts can be easily displaced by different nucleophiles, yielding a wide variety of substituted benzenes. The leaving group departs as nitrogen gas, and this easy elimination is the driving force for the substitution reaction.
In the Sandmeyer reaction, for example, the diazonio group is replaced by a chloro, bromo,...
In the Sandmeyer reaction, for example, the diazonio group is replaced by a chloro, bromo,...
2.1K
Diazonium Group Substitution with Halogens and Cyanide: Sandmeyer and Schiemann Reactions
1.9K
Arenediazonium substitution reactions occur when the diazonium group is substituted by various functional groups such as halides, hydroxyl, nitrile, etc. For instance, arenediazonium salts react with copper(I) salts of chloride, bromide, or cyanide to form corresponding aryl chlorides, bromides, and nitriles. These reactions are named Sandmeyer reactions. Although the mechanism of this reaction is complicated, as illustrated in Figure 1, they are believed to progress via an aryl copper...
1.9K
Phase II Reactions: Miscellaneous Conjugation Reactions
62
Phase II biotransformations are detoxification mechanisms that conjugate xenobiotics with endogenous substances, neutralizing their toxicity.
A key example involves the conjugation of cyanide ions, which impair cellular respiration and alter hemoglobin into non-oxygen-carrying cyanmethemoglobin. To neutralize this threat, a sulfur atom from thiosulphate is transferred to the cyanide ion, catalyzed by the enzyme rhodanese, resulting in an inactive compound called thiocyanate. The production of...
A key example involves the conjugation of cyanide ions, which impair cellular respiration and alter hemoglobin into non-oxygen-carrying cyanmethemoglobin. To neutralize this threat, a sulfur atom from thiosulphate is transferred to the cyanide ion, catalyzed by the enzyme rhodanese, resulting in an inactive compound called thiocyanate. The production of...
62


