Aminopyridine Carbamic Acid Esters: Synthesis and Potential as Acetylcholinesterase Inhibitors and Acetylcholine Releasers
作者:Gregory M. Shutske、John D. Tomer、Kevin J. Kapples、Nicholas J. Hrib、John G. Jurcak、Gina M. Bores、Francis P. Huger、Wayne Petko、Craig P. Smith
DOI:10.1002/jps.2600810419
日期:1992.4
intermediate in the synthesis of 2b, demonstrated surprisingly good cholinesterase inhibition (IC50 was 9.4 microM) but showed no activity as a release. A precursor to 7a, N-(3-hydroxy-4-pyridyl)-N',N'-dimethylformamidine (6a), showed some activity in release but was not an esterase inhibitor, whereas the precursor to 6a, 4-amino-3-pyridinol (5a), was a potent releaser. A new synthesis of 5a, based on
根据报道的类似N-(4-氨基-3-吡啶基)-N',N'-的活性,合成了4-氨基-3-吡啶基氨基甲酸酯(2a-c)作为潜在的乙酰胆碱酯酶抑制剂和乙酰胆碱释放剂。二甲基脲(1)。虽然4-氨基-3-吡啶基N,N-二甲基氨基甲酸酯(2b)显示出良好的胆碱酯酶抑制作用[引起最大酶反应(IC50)降低50%的浓度为13.4 microM],但它对刺激释放的神经酰胺没有影响。大鼠纹状体切片中的[3H]乙酰胆碱。N,N-二甲基氨基甲酸酯N-N-N,N-二甲基氨基甲酸酯4-[[((二甲基氨基)亚甲基]氨基] -3-吡啶基(7a)表现出令人惊讶的良好的胆碱酯酶抑制作用(IC50为9.4 microM),但没有释放活性。N-(3-羟基-4-吡啶基)-N',N'-二甲基甲am(6a)的前体,它显示出一定的释放活性,但不是酯酶抑制剂,而6a的前体4-氨基-3-吡啶醇(5a)是有效的释放剂。还报道了基于正交定向锂化策略的5a的新合成。