申请人:Nova Pharmaceutical Corporation
公开号:US04657899A1
公开(公告)日:1987-04-14
The invention pertains to novel, potent anticonvulsants, analgesics and cognition enhancers achieving their action through the antagonism of specific excitatory amino acid neurotransmitter receptors. In particular, the invention is directed to .omega.-[2-phosphonoalkyleneyl)phenyl]-2-aminoalkanoic acids having general formula: ##STR1## Wherein R.sub.1 and R.sub.2 are the same or different and are selected from the group consisting of hydrogen, lower alkyl, halogen, --CH.dbd.CH--CH.dbd.CH.dbd., amino, nitro, trifluoromethyl or cyano; n and m=0, 1, 2, or 3; and the pharmaceutically acceptable salts and derivatives thereof. Examples of specific preferred compounds of general formula are selected from the group consisting of: 4-[2-phosphonomethylphenyl]-2-aminobutanoic acid, ethyl 3-[2-(2-diethylphosphonoethyl)phenyl]-2-acetamido-2-carboethoxypropanoate, 3-[2-(2-phosphonomethyl)phenyl]-2-aminopropanoic acid, ethyl 3-[2-(3-bromopropyl)phenyl]-2-acetamido-3-carboethoxypropanoate, ethyl 3-[2-(3-diethylphosphonopropyl)phenyl]-2-acetamido-2-carboethoxypropanoate , ethyl 3-[2-(3-phosphonopropyl)-phenyl]-2-aminopropanoic acid, ethyl 5-[2-(diethylphosphonomethyl)-phenyl]-2-acetamido-2-carboethoxypentanoate, and 5-[2-phosphonomethylphenyl]-2-aminopentanoic acid.
该发明涉及新型、有效的抗癫痫药、镇痛药和认知增强剂,通过拮抗特定的兴奋性氨基酸神经递质受体来发挥作用。具体来说,该发明涉及具有一般化学式的.ω.-[2-磷酸烷基)苯基]-2-氨基烷酸:其中R.sub.1和R.sub.2相同或不同,选自氢、较低烷基、卤素、--CH.dbd.CH--CH.dbd.CH.dbd.、氨基、硝基、三氟甲基或氰基的群体;n和m=0、1、2或3;以及其药学上可接受的盐和衍生物。一般式的具体优选化合物示例选自以下群体:4-[2-磷酸甲基苯基]-2-氨基丁酸、乙基3-[2-(2-二乙基磷酸乙基)苯基]-2-乙酰氨基-2-羧乙酸乙酯、3-[2-(2-磷酸甲基)苯基]-2-氨基丙酸、乙基3-[2-(3-溴丙基)苯基]-2-乙酰氨基-3-羧乙酸乙酯、乙基3-[2-(3-二乙基磷酸丙基)苯基]-2-乙酰氨基-2-羧乙酸乙酯、乙基3-[2-(3-磷酸丙基)-苯基]-2-氨基丙酸、乙基5-[2-(二乙基磷酸甲基)-苯基]-2-乙酰氨基-2-羧乙氧基戊酸酯和5-[2-磷酸甲基苯基]-2-氨基戊酸。