Synthesis, Antimicrobial Activity, α-Amylase Inhibitory Tests and Molecular Docking Studies of Thiazole Based Hydrazones Derived from 2-acyl-(1H)-indene-1,3(2H)-diones
作者:S. Mor、M. Khatri、S. Sindhu、R. Punia、S. Nagoria、A. Kumar、A. Kumar
DOI:10.1007/s11094-022-02728-6
日期:2022.10
A series of new thiazole based hydrazones have been synthesized and their antimicrobial and α-amylase (type-II diabetes) inhibitory activities have been evaluated. The structures of synthesized derivatives were elucidated by various spectral techniques including FTIR, NMR and mass spectrometry. Antibacterial activity tests were performed against two Gram-positive (Bacillus subtilis and Staphylococcus aureus) and two Gram-negative (Escherichia coli and Pseudomonas aeruginosa) bacterial strains. Two fungal strains (Candida albicans and Aspergillus niger) were taken for testing antifungal activity. Among the tested derivatives, compound 3d was found to be the most potent against all tetsed bacterial and fungal strains. The α-amylase inhibitory activity of all compounds was also assayed using the starch iodine method. Derivatives 3j and 3k exhibited the best inhibitory activity against α-amylase enzyme with IC50 values of 0.26 ± 0.06 and 0.32 ± 0.02 μM, respectively, in comparison to acarbose (IC50 = 0.11 ± 0.00 μM) as standard reference. The results of the biological activity evaluation were confirmed by docking studies.
一系列新的噻唑基腙已经合成,其抗菌和α-淀粉酶(II型糖尿病)抑制活性已经过评估。合成的衍生物结构通过多种光谱技术(包括FTIR、NMR和质谱)得到阐明。抗菌活性测试针对两种革兰氏阳性菌(枯草芽孢杆菌和金黄色葡萄球菌)和两种革兰氏阴性菌(大肠杆菌和铜绿假单胞菌)菌株进行。两种真菌菌株(白色念珠菌和黑曲霉)用于测试抗真菌活性。在测试的衍生物中,化合物3d被证明对所有革兰氏阳性菌和真菌菌株的抑制活性最强。所有化合物的α-淀粉酶抑制活性也使用淀粉碘法进行测定。与标准参考物阿卡波糖(IC50 = 0.11 ± 0.00 μM)相比,衍生物3j和3k对α-淀粉酶的抑制活性最佳,IC50值分别为0.26 ± 0.06和0.32 ± 0.02 μM。生物活性评估结果通过对接研究得到证实。