利用Hantzsch方法设计并合成了新的N,4-二苯基噻唑-2-胺衍生物。在生态友好的条件下,合成中涉及的三步反应以更快的速率发生,并具有优异的收率。通过光谱技术(例如1 H NMR,1313 C NMR,FT-IR和GCMS。X射线单晶衍射研究也证实了标题化合物的形成。在体外评估了这些化合物的抗微生物和抗炎活性。结果表明,大多数测试化合物显示出有效的抗真菌活性。有趣的是,这些化合物还对敏感和耐药菌株表现出良好的抗炎和适度的抗菌活性。计算机研究表明,它们对金黄色葡萄球菌(PDB ID:1AD4)和白色念珠菌(PDB ID:1AI9)具有良好的结合亲和力。
利用Hantzsch方法设计并合成了新的N,4-二苯基噻唑-2-胺衍生物。在生态友好的条件下,合成中涉及的三步反应以更快的速率发生,并具有优异的收率。通过光谱技术(例如1 H NMR,1313 C NMR,FT-IR和GCMS。X射线单晶衍射研究也证实了标题化合物的形成。在体外评估了这些化合物的抗微生物和抗炎活性。结果表明,大多数测试化合物显示出有效的抗真菌活性。有趣的是,这些化合物还对敏感和耐药菌株表现出良好的抗炎和适度的抗菌活性。计算机研究表明,它们对金黄色葡萄球菌(PDB ID:1AD4)和白色念珠菌(PDB ID:1AI9)具有良好的结合亲和力。
Effect of Substituents on the Regioselectivity of the Reaction of α-Tosyloxyketones with Thioureas in Acidic Medium: Access to 2-Aminothiazoles and 2-Imino-2,3-dihydrothiazoles
作者:Ranjana Aggarwal、Rajiv Kumar、Dionisia Sanz、Rosa M. Claramunt
DOI:10.1002/jhet.1676
日期:2014.5
Regioselective condensation of α‐tosyloxyacetophenones 1 and N‐substituted thioureas 2 in acidicmedium to give regioisomers 2‐aminothiazoles I and 2‐imino‐2,3‐dihydrothiazoles II is largely influenced by the substituents present on 1 and 2. A mechanism, supported by DFT calculations has been proposed to explain the observed regioselectively.
Novel di- and trisubstituted thiazole derivatives bearing heterocyclic, aromatic, chalcone, and carboxyalkyl-heterocyclic moieties were synthesized. Compounds possessing significant antibacterial activity, comparable to that of commercial antibacterial agent ampicillin, against Rhizobium radiobacter, Xanthomonas campestris, and Escherichia coli were identified. Some of the synthesized compounds exhibited a very high antioxidant activity.
Lipase and Deep Eutectic Mixture Catalyzed Efficient Synthesis of Thiazoles in Water at Room Temperature
Lipase bio-catalyst or ammonium based deep eutectic mixture efficiently catalyzed aqueous phase synthesis of methyl-thiazole and amino-thiazole derivatives. The simple ammonium deep eutectic catalyst, easily synthesized from choline chloride and urea, is inexpensive, recyclable and bio-degradable, making it suitable for industrial applications.