Synthesis and anticonvulsant activity of enaminones.
作者:Natalie D Eddington、Donna S Cox、Ralph R Roberts、Raymond J Butcher、Ivan O Edafiogho、James P Stables、Neville Cooke、Angela M Goodwin、Carlynn A Smith、K.R Scott
DOI:10.1016/s0223-5234(02)01377-6
日期:2002.8
pentylenetetrazol, bicuculline, and picrotoxin on isoxazole 10 were all negative, leading to an unknown mechanism of action. X-ray diffraction patterns of a representative of the 3-amino series (isoxazoles 6-11) unequivocally display the existence of intramolecular hydrogen bonding of the nitrogen to the vinylic proton in the cyclohexene ring, providing a pseudo three ring structure which was also shown previously
由于在我们的实验室中合成的取代苯胺烯胺酮,相关的吡啶衍生物和吩噻嗪具有出色的抗惊厥活性,因此对各种芳族杂环进行了进一步的研究。环状1,3-二酮酯与3-和5-氨基异恶唑衍生物的缩合产生一系列有效的最大抗电击(MES)类似物,其中三个发生在3-氨基系列中:乙酯(10),大鼠口服(po)活跃[ED(50)68.9 mg kg(-1),TD(50)> 500 mg kg(-1),保护指数(PI = TD(50)/ ED(50))> 49.6 ]; 甲酯(9),小鼠腹膜内(ip)ED(50)68.9 mg kg(-1),TD(50)> 500 mg kg(-1),PI> 7.3和叔丁酯(8),大鼠ED(50)28.1 mg kg(-1)po,TD(50)> 500 mg kg(-1),PI> 17.8。钠通道结合研究,以及对异恶唑10的戊戊四唑,双瓜氨酸和苦瓜毒素的评估均为阴性,导致未知的作用机理。