Novel Tacrine Analogues for Potential Use against Alzheimer's Disease: Potent and Selective Acetylcholinesterase Inhibitors and 5-HT Uptake Inhibitors
作者:Maureen T. MKenna、George R. Proctor、Louise C. Young、Alan L. Harvey
DOI:10.1021/jm970150t
日期:1997.10.1
synthesized and tested for their ability to inhibit acetylcholinesterase, butyrylcholinesterase, and neuronal uptake of 5-HT (serotonin) and noradrenaline. Changes in the size of the carbocyclic ring of tacrine produced modest potency against cholinesterase enzymes. Addition of a fourth ring resulted in compounds with marked selectivity for acetylcholinesterase (AChE) over butyrylcholinesterase (BChE):
已经合成了几种新的他克林类似物,并测试了它们抑制乙酰胆碱酯酶,丁酰胆碱酯酶以及5-HT(5-羟色胺)和去甲肾上腺素的神经元摄取的能力。他克林碳环大小的变化产生了适度的针对胆碱酯酶的效力。第四个环的加成导致化合物对乙酰胆碱酯酶(AChE)的选择性比对丁酰胆碱酯酶(BChE)的选择性高:例如6-氨基-4,5-苯并-5H-环戊[1,2-b]-喹啉(14a)具有针对AChE的IC50为0.35 microM,针对BChE的IC50为3.1 microM。一些四环化合物作为神经元摄取5-羟色胺的抑制剂的活性比他克林高100-400倍,特别是13-氨基-6,7-二氢-5H-苯并-[3,4]环庚[1,2-b]喹啉(18),其IC50为20 nM。这些化合物有望促进胆碱能和单胺能传递。他们应该对记忆障碍模型进行研究。