Synthesis, molecular docking and biological evaluation of N,N-disubstituted 2-aminothiazolines as a new class of butyrylcholinesterase and carboxylesterase inhibitors
作者:Galina F. Makhaeva、Natalia P. Boltneva、Sofya V. Lushchekina、Olga G. Serebryakova、Tatyana S. Stupina、Alexey A. Terentiev、Igor V. Serkov、Alexey N. Proshin、Sergey O. Bachurin、Rudy J. Richardson
DOI:10.1016/j.bmc.2016.01.031
日期:2016.3
A series of 31 N,N-disubstituted 2-amino-5-halomethyl-2-thiazolines was designed, synthesized, and evaluated for inhibitory potential against acetylcholinesterase (AChE), butyrylcholinesterase (BChE) and carboxylesterase (CaE). The compounds did not inhibit AChE; the most active compounds inhibited BChE and CaE with IC50 values of 0.22–2.3 μM. Pyridine-containing compounds were more selective toward
设计,合成了一系列31 N,N-二取代的2-氨基-5-卤甲基-2-噻唑啉,并评估了其对乙酰胆碱酯酶(AChE),丁酰胆碱酯酶(BChE)和羧酸酯酶(CaE)的抑制潜力。该化合物不抑制AChE。最具活性的化合物抑制BChE和CaE,IC 50值为0.22–2.3μM。含吡啶的化合物对BChE的选择性更高。与对位的化合物两个二苄基片段之一中的-OMe取代基对CaE的选择性更高。碘化衍生物比溴化衍生物更有效的BChE抑制剂,而卤素类型对CaE的抑制作用没有影响。对9种活性最高的化合物的抑制动力学表明,CaE的竞争性是非竞争性的,而BChE的抑制机制(竞争性,非竞争性或混合型)多种多样。对接模拟预测了化合物与BChE和CaE的关键结合相互作用,并揭示了BChE中最佳的对接位置是在峡谷底部靠近活性位点的催化残基。相反,CaE的最佳结合位置聚集在距离峡谷顶部的活性位点很远的位置。因此,对接结果提供了对