申请人:Merck Sharp & Dohme Limited
公开号:US05270309A1
公开(公告)日:1993-12-14
4-Oxo-1,4-dihydroquinoline compounds having a 2-acidic group or a group convertible thereto in vivo, and their pharmaceutically acceptable salts, are potent specific antagonists of N-methyl-D-aspartate (NMDA) receptors and are therefore useful in the treatment of neurodegenerative disorders. 4-Oxo-1,4-dihydroquinoline compounds having a 2-acidic group or a group convertible thereto in vivo, other than carboxy or C.sub.1-6 alkoxycarbonyl, are novel compounds, as also are compounds of formula II ##STR1## wherein R.sup.2 represents carboxy or a group convertible thereto in vivo, R.sup.6 is hydrogen and R.sup.5 and R.sup.7 represent C.sub.1-6 alkyl or halogen, provided that R.sup.5 and R.sup.7 are not simultaneously chlorine or simultaneously bromine; a process for preparing the novel compounds is described, as also are pharmaceutical compositions containing the novel compounds.
具有2-酸性基团或可在体内转化为该基团的4-氧代-1,4-二氢喹啉化合物及其药用可接受的盐是N-甲基-D-天冬氨酸(NMDA)受体的有效特异性拮抗剂,因此在治疗神经退行性疾病方面具有用途。具有2-酸性基团或可在体内转化为该基团的4-氧代-1,4-二氢喹啉化合物,除了羧基或C.sub.1-6烷氧羰基之外,是新颖的化合物,公式II的化合物也是新颖的,其中R.sup.2代表羧基或可在体内转化为该基团的基团,R.sup.6为氢,R.sup.5和R.sup.7代表C.sub.1-6烷基或卤素,但要求R.sup.5和R.sup.7不能同时是氯或溴;描述了制备这些新颖化合物的方法,以及含有这些新颖化合物的药物组合物。