The present study reports the synthesis of various new derivatives based on 5-aryl-2-bromo-3-hexylthiophene with moderate-to-good yields via a palladium-catalyzed Suzuki cross-coupling reaction. This coupling method involved the reaction of 2,5-dibromo-3-hexylthiophene with several arylboronic acids in order to synthesize corresponding thiophene derivatives under controlled and optimal reaction conditions. The different substituents (CH3, OCH3, Cl, F etc.) present on arylboronic acids are found to have significant electronic effects on the overall properties of new products. The synthesized thiophene molecules were studied for their haemolytic, biofilm inhibition and anti-thrombolytic activities, and almost all products showed potentially good properties. The compound 2-bromo-5-(3-chloro-4-fluorophenyl)-3-hexylthiophenein particular exhibited the highest values for haemolytic and bio-film inhibition activities among all newly synthesized derivatives. In addition, the compound 2-bromo-3-hexyl-5-(4-iodophenyl)thiophene also showed high anti-thrombolytic activity, suggesting the potential medicinal applications of these newly synthesized compounds.
本研究报告了通过
钯催化的铃木交叉偶联反应,以 5-芳基-
2-溴-3-己基噻吩为
基础合成了多种新衍
生物,收率中等至良好。这种偶联方法涉及
2,5-二溴-3-己基噻吩与几种芳基
硼酸的反应,以便在受控的最佳反应条件下合成相应的
噻吩衍
生物。 研究发现,存在于芳基
硼酸上的不同取代基(
CH3、O 、Cl、F 等)对新产品的整体特性具有显著的电子效应。对合成的
噻吩分子进行了溶血、
生物膜抑制和抗血栓溶解活性研究,几乎所有产品都显示出潜在的良好特性。在所有新合成的衍
生物中,2-
溴-5-(3-
氯-4-
氟苯基)-
3-己基噻吩化合物的溶血和
生物膜抑制活性值最高。此外,化合物 2-
溴-3-己基-5-(4-
碘苯基)
噻吩也表现出很高的抗溶血活性,这表明这些新合成的化合物具有潜在的医药应用价值。