Synthesis, molecular docking, and pharmacological evaluation of halobenzodithiophene derivatives against alpha-glucosidase, urease, and free radical production
作者:Ghulam ABBAS、Zahid HASSAN、Ahmed AL-HARRASI、Syed Aun MUHAMAAD、Ahood Juma AL-QURAINI、Zahra Khamis AL-MAANI、Ahmed Mohammed AL-ADAWAI
DOI:10.3906/kim-1801-27
日期:——
Benzodithiophenes are heterocyclic compounds that have various medicinal and industrial applications. In the present study, halobenzodithiophene, the simplest benzofused thiophene, and its derivatives were synthesized and evaluated against alpha-glucosidase, urease, and free radical production. In the alpha-glucosidase inhibition assay, compound 2,2-bisbenzothiophne (1) exhibited potent activity with IC$_50}$ = 135 $\pm $ 0.51 $\mu $M, while its derivative 2,7-bis(butoxycarbonyl)-3,6-dichlorobenzo[1,2-$b$;6,5-$b$']dithiophene (2) exhibited promising inhibition with IC$_50}$ = 263 $\pm $ 0.32 $\mu $M. In the 1,1-diphenyl-2-picrylhydrazyl (DPPH) radical-scavenging assay, compound 2 exhibited promising activity with IC$_50}$ = 33 $\pm $ 0.42 $\mu $M, while compound 1 showed moderate inhibition in the urease inhibition assay. Molecular docking studies determined the possible interaction of benzodithiophene and alpha-glucosidase on the basis of binding energy and scoring function. Structure-activity relationship analysis revealed that compound 2,7-bis (butoxycarbonyl)-3,6-dichlorobenzo[1,2-$b$;6,5-$b$'] dithiophene (1) containing two chlorine substitutions exhibited more alpha-glucosidase inhibition (IC$_50}$ = 263 $\pm $ .0.32 $\mu $M) than other derivatives. Moreover, compound 2,7-bis (butoxycarbonyl)-3,6-dichlorobenzo[1,2-$b$;6,5-$b$'] dithiophene (2) with two chlorine substitutions exhibited potent DPPH radical scavenging activity compared to other derivatives.
苯并二噻吩是一类具有多种医学和工业应用的杂环化合物。在本研究中,合成了卤苯并二噻吩——最简单的苯并融合噻吩及其衍生物,并对其进行了α-葡萄糖苷酶、尿素酶和自由基产生的抑制评估。在α-葡萄糖苷酶抑制活性测试中,化合物2,2-双苯并噻吩(1)表现出强效活性,其IC₅₀值为135 ± 0.51 μM,而其衍生物2,7-双(丁氧基羰基)-3,6-二氯苯并[1,2-b;6,5-b']二噻吩(2)则表现出良好的抑制活性,IC₅₀值为263 ± 0.32 μM。在1,1-二苯基-2-吡喃氮酰肼(DPPH)自由基清除测试中,化合物2展现出良好的活性,IC₅₀值为33 ± 0.42 μM,而化合物1在尿素酶抑制测试中显示出中等抑制作用。分子对接研究确定了苯并二噻吩与α-葡萄糖苷酶之间的可能相互作用,这基于结合能和评分函数的分析。结构-活性关系分析表明,含有两个氯取代基的化合物2,7-双(丁氧基羰基)-3,6-二氯苯并[1,2-b;6,5-b']二噻吩(1)比其他衍生物表现出更强的α-葡萄糖苷酶抑制活性(IC₅₀ = 263 ± 0.32 μM)。此外,含有两个氯取代基的化合物2,7-双(丁氧基羰基)-3,6-二氯苯并[1,2-b;6,5-b']二噻吩(2)相比其他衍生物展现出强效的DPPH自由基清除活性。