Pyridopyrazine and quinoxaline derivatives, processes for their preparation, and pharmaceutical compositions containing them
申请人:FISONS plc
公开号:EP0008864A1
公开(公告)日:1980-03-19
There are described compounds of formula I,
in which R1 is phenyl substituted by halogen, alkoxy, alkyl, carboxy-alkyl, -NR4R5, carboxy or alkoxy carbonyl,
R3 is hydrogen, alkyl, mono- or di-carboxy alkyl, halo, alkoxy, phenyl, halo-phenyl, hydroxy, phenoxy, thiol, thioalkoxy, thiophenoxy, -NR4Rs, cyano, -COOH, carboxyureido, -CF3, -CORe, hydroxyalkyl, aminoalkyl, or alkoxy substituted by NR4R5,
ring A is a benzene or a pyridine ring which optionally carries up to 4 substituents R3, which may be the same or different,
R4 and Rs, which may be the same or different, each represent hydrogen, phenyl, halophenyl or alkyl, the alkyl optionally being substituted by alkoxy or by a mono- or di- alkyl or unsubstituted amino group; or R4 and Rs, together with the nitrogen atom to which they are attached, form a piperidine, morpholine or an optionally alkyl substitued piperazine ring, and
R6 is hydrogen or alkyl,
provided that (i) when R, is phenyl substituted by chlorine or bromine, ring A is not a benzene ring substituted by chlorine or bromine, or (ii) when R, is phenyl substituted by methoxy R3 is not phenyl,
and pharmaceutically acceptable salts, esters and amides thereof.
There are also described methods for making the compounds and pharmaceutical, e.g. anti-inflammatory, compositions containing the compounds.
所述化合物为式 I、
其中 R1 是被卤素、烷氧基、烷基、羧基、-NR4R5、羧基或烷氧基羰基取代的苯基、
R3 是氢、烷基、一羧基或二羧基烷基、卤素、烷氧基、苯基、卤代苯基、羟基、苯氧基、硫醇、硫代烷氧基、噻吩氧基、-NR4Rs、氰基、-COOH、羧基脲基、-CF3、-CORe、羟基烷基、氨基烷基或被 NR4R5 取代的烷氧基、
环 A 是苯环或吡啶环,可选择带有最多 4 个取代基 R3,它们可以相同或不同、
R4和Rs(可以相同或不同)各自代表氢、苯基、卤代苯基或烷基,烷基可选择被烷氧基或单烷基或二烷基或未取代的氨基取代;或R4和Rs与它们所连接的氮原子一起形成哌啶、吗啉或可选择被烷基取代的哌嗪环,以及
R6 为氢或烷基、
但 (i) 当 R 为被氯或溴取代的苯基时,环 A 不是被氯或溴取代的苯环,或 (ii) 当 R 为被甲氧基取代的苯基时,R3 不是苯基、
及其药学上可接受的盐、酯和酰胺。
此外,还介绍了制造这些化合物的方法以及含有这些化合物的药物组合物,例如消炎组合物。