作者:Ming-Kuan Hu、Li-Ju Wu、George Hsiao、Mao-Hsiung Yen
DOI:10.1021/jm010308g
日期:2002.5.1
search for highly selective and potent derivatives of tacrine (1a), a number of homodimeric tacrine congeners were synthesized and conducted for their effects on rat acetylcholinesterase (AChE) and human butyrylcholinesterase (BChE) inhibitions. Heptylene-linked bis-(6-chloro)tacrine (3h) was found up to 3000- and 3-fold more potent in inhibiting rat AChE than tacrine and the unsubstituted bis-tacrine 3b
在寻找他克林(1a)的高选择性和有效衍生物的过程中,合成了许多同二聚他克林同源物,并研究了它们对大鼠乙酰胆碱酯酶(AChE)和人丁酰胆碱酯酶(BChE)的抑制作用。发现庚烯连接的双-(6-氯)他克林(3h)抑制大鼠AChE的效力分别比他克林和未取代的双-他克林3b高3000倍和3倍。与3b相比,二聚他克林碳环的大小变化降低了AChE抑制的选择性和效力。将氮杂作为所需的等位基因3j-m插入他克林核中会产生中等效力,但往往对选择性有害。通过在同源二聚啶的6-位掺入卤素,可以显着提高AChE抑制能力和AChE / BChE选择性。3a-m的测定结果也提供了证据,表明7-亚甲基系链倾向于AChE抑制能力最佳。