Abstract
N-Substituted-2-propanamide analogues of 1,3,4-oxadiazole have been synthesized using a multi-step synthetic protocol to explore new therapeutic anti-enzymatic agents. Herein, we have merged sulfonyl, piperidine, oxadiazole and amide into a single unit to synthesize a library of unique compounds, 8a–n. The molecular structures of all synthesized compounds were verified by 13C-NMR, 1H-NMR, HRMS and IR spectroscopy. Furthermore, the compounds were screened for their inhibition potential against acetylcholinesterase (AChE), urease and lipoxygenase (LOX) enzymes. A considerable inhibition potential was observed for three compounds against LOX with quercetin as a reference standard, two compounds against urease with thiourea as a reference standard and two compounds against AChE with eserine as a reference standard. Through molecular docking investigations, we were able to correlate the overall impact and inhibition criteria by the structure–activity relationship via the interactions between synthesized compounds and active sites of enzymes. Pharmacodynamics, pharmacokinetics and in vivo studies may be investigated further for the most active compounds to substantiate them as potential anti-enzymatic medications.
摘要
我们采用多步合成方案合成了 1,3,4-噁二唑的 N-取代-2-丙酰胺类似物,以探索新的抗酶治疗药物。在这里,我们将磺酰基、哌啶基、噁二唑基和酰胺基合并为一个单元,合成了一个独特的化合物库 8a-n。通过 13C-NMR、1H-NMR、HRMS 和 IR 光谱验证了所有合成化合物的分子结构。此外,还筛选了这些化合物对乙酰胆碱酯酶(AChE)、脲酶和脂氧合酶(LOX)的抑制潜力。结果表明,以槲皮素为参照标准,三个化合物对 LOX 有相当大的抑制潜力;以硫脲为参照标准,两个化合物对脲酶有抑制潜力;以丝氨酸为参照标准,两个化合物对 AChE 有抑制潜力。通过分子对接研究,我们能够通过合成化合物与酶活性位点之间的相互作用,以结构-活性关系来关联整体影响和抑制标准。我们可能会对最具活性的化合物进行进一步的药效学、药代动力学和体内研究,以证实它们是潜在的抗酶药物。