Cholinesterase Inhibitory Activities of N-Phenylthiazol-2-Amine Derivatives and their Molecular Docking Studies
作者:Jamshed Iqbal、Mariya al-Rashida、Ayesha Babar、Abdul Hameed、Muhammad Khan、Munawar Munawar、Ather Khan
DOI:10.2174/1573406411666141230104536
日期:2015.6.30
Alzheimer’s disease (AD) is a type of neurodegenerative disorder which is responsible for
many cognitive dysfunctions. According to the most accepted cholinergic hypothesis, cholinesterases
have a major role in AD symptoms. The use of small molecules as inhibitors is one of the most useful strategies to control
AD. In the present work, a series of N-phenylthiazol-2-amine derivatives was screened against acetylcholinesterase
(AChE) from Electrophorus electricus and butyrylcholinesterase (BChE) from horse serum by using Ellman’s method,
using neostigmine and donepezil as reference drugs. Some of the assayed compounds proved to be potent inhibitors for
AChE and BChE activity. N-(2,3-dimethylphenyl)thiazol-2-amine, 3j was found to be the most active inhibitor among the
series with IC50 value of 0.009 ± 0.002 µM and 0.646 ± 0.012 µM against AChE and BChE, respectively. Molecular
docking studies were carried out in order to better understand the ligand binding site interactions.
阿尔茨海默病(AD)是一种神经退行性疾病,可导致多种认知功能障碍。根据最广为接受的胆碱能假说,胆碱酯酶在阿尔茨海默病症状中起着重要作用。使用小分子作为抑制剂是控制注意力缺失症最有用的策略之一。本研究以新斯的明(neostigmine)和多奈哌齐(donepezil)为参比药物,采用埃尔曼法筛选了一系列 N-苯基噻唑-2-胺衍生物,以对抗来自电鱼的乙酰胆碱酯酶(AChE)和来自马血清的丁酰胆碱酯酶(BChE)。其中一些化合物被证明是 AChE 和 BChE 活性的强效抑制剂。在这一系列化合物中,N-(2,3-二甲基苯基)噻唑-2-胺 3j 是最有效的抑制剂,其对 AChE 和 BChE 的 IC50 值分别为 0.009 ± 0.002 µM 和 0.646 ± 0.012 µM。为了更好地了解配体结合位点的相互作用,我们进行了分子对接研究。