The anticonvulsant activity of hydroxycoumarin derivatives and 4-[(3-nitro-2-oxo-2H-chromen-4-yl)amino] butanoic acid was studied using nicotine and corazole convulsion models. All investigated compounds protected animals from death in 100% of cases after intraperitoneal administration of the LD50 of nicotine (14 mg/kg). 4-[(3-Nitro-2-oxo-2H-chromen-4-yl)amino]butanoic acid showed anticonvulsant activity at a dose of 20 mg/kg in the corazole convulsion test while 7-(2-morpholino-2-oxoethoxy)-2H-chromen-2-one (a 7-hydroxycoumarin derivative) prevented convulsions at a dose of 200 mg/kg, which was comparable to the anticonvulsant effect of valproic acid at the same dose. An analysis of the results suggested different mechanisms for the anticonvulsant action of the investigated substances, which was indicative of good prospects for further development of coumarin derivatives as agents with wide spectra of anticonvulsant activity.
研究了羟基
香豆素衍
生物和4-[(
3-硝基-2-氧-
2H-色烯-4-基)
氨基]
丁酸的抗惊厥活性,采用
尼古丁和可拉佐诱发惊厥模型。所有研究化合物在腹腔注射
尼古丁半数致死量(14 mg/kg)后,在100%的病例中保护动物免于死亡。4-[(
3-硝基-2-氧-
2H-色烯-4-基)
氨基]
丁酸在可拉佐诱发惊厥试验中显示出20 mg/kg剂量的抗惊厥活性,而7-(2-吗啉-2-氧代乙氧基)-
2H-色烯-2-酮(一种7-羟基
香豆素衍
生物)在200 mg/kg剂量下预防惊厥,这与相同剂量的
丙戊酸的抗惊厥效果相当。对结果的分析表明,所研究物质的抗惊厥作用机制不同,这预示着
香豆素衍
生物作为具有广泛抗惊厥活性的药物具有良好的发展前景。