Design, Synthesis, SAR, and Biological Evaluation of Highly Potent Benzimidazole-Spaced Phosphono-α-Amino Acid Competitive NMDA Antagonists of the AP-6 Type
作者:Reinhardt B. Baudy、Horace Fletcher III,、John P. Yardley、Margaret M. Zaleska、Donna R. Bramlett、Rene P. Tasse、Dianne M. Kowal、Alan H. Katz、John A. Moyer、Magid Abou-Gharbia
DOI:10.1021/jm000385w
日期:2001.5.1
nomethyl-1H-benzoimidazol-2-yl)-propionic acid (1) displayed an IC(50) value of 7.1 nM in the [3H]CPP binding assay and an ED(50) value of 0.13 mg/kg (ip) in the NMDA lethality model. Compound 1, when administered intravenously as a single bolus dose of 3 mg/kg following permanent occlusion of the middle cerebral artery in the rat, reduced the volume of infarcted brain tissue by 45%. These results
合成了一系列2-氨基-(膦酰基烷基)-1H-苯并咪唑-2-链烷酸,并使用[3H] CPP结合试验评估了NMDA受体的亲和力。NMDA受体复合物的功能拮抗作用在体外使用刺激的[3H] TCP结合测定进行评估,在体内通过使用NMDA诱导的癫痫发作模型进行评估。AP-6类型的几种化合物在体外和体内均表现出有效和选择性的NMDA拮抗活性。尤其是[R(-)]-2-氨基-3-(5-氯-1-膦酰基甲基-1H-苯并咪唑-2-基)-丙酸(1)在2001年的IC(50)值为7.1 nM。在NMDA杀伤力模型中,[3H] CPP结合测定和ED(50)值为0.13 mg / kg(ip)。在永久性阻塞大鼠大脑中动脉后,以3毫克/千克的单次推注剂量静脉内施用化合物1,使梗塞的脑组织体积减少了45%。这些结果支持化合物1作为神经保护剂的有希望的治疗潜力。