6,7-ASYMMETRICALLY DISUBSTITUTED QUINOXALINECARBOXYLIC ACID DERI VATIVES, ADDITION SALTS THEREOF, AND PROCESSES FOR THE PREPARATION OF BOTH
申请人:KYORIN PHARMACEUTICAL CO., LTD.
公开号:EP1020453A1
公开(公告)日:2000-07-19
The present invention provides compounds with antagonism against excitatory amino acid receptors, in particular, AMPA receptor, having 6,7-asymmetrically disubstituted quinoxalinecarboxylic acid derivatives and their addition salts as effective ingredients, and processes for preparing them, and relates to 6,7-asymmetrically disubstituted quinoxalinecarboxylic acid derivatives represented by a general formula (1)
[wherein, Q denotes a halogen atom, lower alkyl group which may be substituted with halogen atom, general formula (2)
Ar-P- (2)
(wherein Ar denotes a phenyl group or naphthyl group which may have one or more substituents, and P denotes a lower alkylene, lower alkenylene, lower alkynylene, oxygen or sulfur atom), or general formula (3);
L-A- (3)
R denotes a nitro group, trifluoromethyl group, amino group which may be substituted, or general formula (7),
R1 denotes an aralkyl group, phenyl group, naphthyl group, 5- or 6-membered heterocycle and its condensed ring (these may have one or more substituents on aromatic ring or heterocycle), hydrogen atom, lower alkyl group which may be substituted with halogen atom or cycloalkyl group, and R2 denotes a hydroxyl group, lower alkoxy group or general formula (6)
], and their addition salts.
本发明提供了以6,7-不对称二取代的喹喔啉羧酸衍生物及其加成盐为有效成分的对兴奋性氨基酸受体,特别是AMPA受体具有拮抗作用的化合物及其制备工艺,并涉及通式(1)表示的6,7-不对称二取代的喹喔啉羧酸衍生物
[其中,Q 表示卤素原子、可被卤素原子取代的低级烷基、通式 (2)
Ar-P- (2)
(其中 Ar 表示苯基或萘基,可带有一个或多个取代基,P 表示低级亚烷基、低级亚烯基、低级亚炔基、氧原子或硫原子)或通式(3);
L-A- (3)
R 表示硝基、三氟甲基、可被取代的氨基或通式(7)、
R1 表示芳烷基、苯基、萘基、5 或 6 元杂环及其缩合环(可在芳香环或杂环上有一个或多个取代基)、氢原子、可被卤素原子取代的低级烷基或环烷基,R2 表示羟基、低级烷氧基或通式(6)。
] 以及它们的加成盐。