Abstractα‐Glucosidase inhibition is widely used in the oral management of diabetes mellitus (DM), a disease characterized by high blood sugar levels (hyperglycemia) and abnormal carbohydrate metabolism. In this respect, a series of 1,2,3‐triazole‐1,3,4‐thiadiazole hybrids 7a–j were synthesized, inspired by a copper‐catalyzed one‐pot azidation/click assembly approach. All the synthesized hybrids were screened for inhibition of the α‐glucosidase enzyme, displaying IC50 values ranging from 63.35 ± 0.72 to 613.57 ± 1.98 μM, as compared to acarbose (reference) with IC50 of 844.81 ± 0.53 μM. The hybrids 7h and 7e with 3‐nitro and 4‐methoxy substituents at the phenyl ring of the thiadiazole moiety were the best active hybrids of this series with IC50 values of 63.35 ± 0.72 μM, and 67.61 ± 0.64 μM, respectively. Enzyme kinetics analysis of these compounds revealed a mixed mode of inhibition. Moreover, molecular docking studies were also performed to gain insights into the structure–activity‐relationships of the potent compounds and their corresponding analogs.
摘要α-葡萄糖苷酶抑制剂被广泛应用于糖尿病(DM)的口服治疗,DM是一种以高血糖(高血糖症)和碳水化合物代谢异常为特征的疾病。在这方面,受铜催化的一锅叠氮化/点击组装方法的启发,合成了一系列 1,2,3-三唑-1,3,4-噻二唑杂化物 7a-j。对所有合成的杂交化合物进行了抑制α-葡萄糖苷酶的筛选,结果显示,与 IC50 为 844.81 ± 0.53 μM 的阿卡波糖(参照物)相比,这些杂交化合物的 IC50 值在 63.35 ± 0.72 到 613.57 ± 1.98 μM 之间。在噻二唑分子的苯基环上具有 3-硝基和 4-甲氧基取代基的杂交化合物 7h 和 7e 是该系列中活性最好的杂交化合物,其 IC50 值分别为 63.35 ± 0.72 μM 和 67.61 ± 0.64 μM。对这些化合物的酶动力学分析表明它们具有混合抑制模式。此外,还进行了分子对接研究,以深入了解这些强效化合物及其相应类似物的结构-活性关系。