申请人:Ciba-Geigy Corporation
公开号:US04906621A1
公开(公告)日:1990-03-06
The present invention is concerned with the phosphonic acids of formula I ##STR1## wherein one or both of the acidic hydroxy groups of the phosphonic acid moiety may be functionalized in form of pharmaceutically acceptable mono- or di- esters; wherein Y represents optionally substituted 2-carboxypyrrolidinyl, 2-carboxy-2,5-dihydropyrrolyl, 2-carboxy-1,2,3,6-tetrahydropyridinyl, 2-carboxy-1,2,5,6-tetrahydropyridinyl, 2-carboxypiperidinyl, 2-carboxytetrahydroquinolinyl or 2-carboxyperhydroquinolinyl, 2-carboxy-2,3-dihydroindolyl or 2-carboxyperhydroindolyl as described herein, and in each of which the carboxy group may be functionalized in form of a pharmaceutically acceptable ester or amide; A represents a direct bond, lower alkenylene, lower alkylidene or lower alkylene provided that A does not represent a direct bond when Y represents 2-carboxypyrrolidinyl; and pharmaceutically acceptable salts thereof; which are useful for the treatment of nervous system disorders in mammals and as antagonists of the N-methyl-D-aspartate sensitive excitatory amino acid receptor.
本发明涉及式I的膦酸##STR1##其中膦酸基团的一个或两个酸性羟基可以被功能化为药学上可接受的单酯或二酯形式;其中Y代表可选择地取代的2-羧基吡咯烷基,2-羧基-2,5-二氢吡咯基,2-羧基-1,2,3,6-四氢吡啶基,2-羧基-1,2,5,6-四氢吡啶基,2-羧基哌啶基,2-羧基四氢喹啉基或2-羧基四氢喹啉基,如本文所述的2-羧基-2,3-二氢吲哚基或2-羧基四氢吲哚基,并且其中羧基可以被功能化为药学上可接受的酯或酰胺形式;A代表直接键,低烯基,低烷基亚甲基或低烷基亚烯基,其中A不代表直接键时,Y代表2-羧基吡咯烷基;及其药学上可接受的盐;其用于治疗哺乳动物的神经系统疾病,并作为N-甲基-D-天冬氨酸敏感的兴奋性氨基酸受体的拮抗剂。