申请人:Glaxo Group Limited
公开号:US05114945A1
公开(公告)日:1992-05-19
Compounds are disclosed of formula (I) ##STR1## wherein R.sub.1 represents hydroxy, C.sub.1-6 alkyl, C.sub.1-6 hydroxyalkyl, C.sub.1-6 carboxyalkyl, phenyl, oxo, amino, carboxy, amido, --NR.sub.4 COR.sub.5 (where R.sub.4 and R.sub.5 both represent C.sub.1-6 alkyl), optionally substituted methylidene or, together with the carbon atom to which it is attached, R.sub.1 forms a 5 or 6-membered ring containing one or more heteroatoms; R.sub.2 and R.sub.3 are the same or different and are C.sub.1-6 alkyl or C.sub.3-6 alkenyl; or --NR.sub.2 R.sub.3 forms a 5-membered (optionally containing an oxygen atom adjacent to the nitrogen) or a 6-membered ring, which ring optionally contains one unit of unsaturation and which is unsubstituted or substituted by hydroxy, oxo, optionally substituted methylidene, --COR.sub.6 (where R.sub.6 represents C.sub.1-6 alkyl, OR, or --NHR, and R represents hydrogen, C.sub.1-6 alkyl, aryl, ar(C.sub.1-6)alkyl) or .dbd.NOR.sub.8 (where R.sub.8 represents C.sub.1-6 alkyl); X represents a direct bond, --CH.sub.2 -- or --CH.sub.2 0--; Ar represents a substituted phenyl moiety; and physiologically acceptable salts thereof. The compounds are indicated as useful for the treatment of pain and cerebral ischemia. Proccesses and intermediates for their preparation and pharmaceutical compositions containing them are also disclosed.
公开了式(I)的化合物:##STR1## 其中R.sub.1代表羟基、C.sub.1-6烷基、C.sub.1-6羟基烷基、C.sub.1-6羧基烷基、苯基、氧代、氨基、羧基、酰胺基、--NR.sub.4 COR.sub.5(其中R.sub.4和R.sub.5均表示C.sub.1-6烷基)、可选地取代的甲基亚甲基或与其连接的碳原子共同形成一个含有一个或多个杂原子的5或6元环;R.sub.2和R.sub.3相同或不同,分别为C.sub.1-6烷基或C.sub.3-6烯基;或--NR.sub.2 R.sub.3形成一个5元环(可选地包含一个邻氧原子)或6元环,该环可选地含有一个不饱和单元,并且未经取代或经过羟基、氧代、可选地取代的甲基亚甲基、--COR.sub.6(其中R.sub.6表示C.sub.1-6烷基、OR或--NHR,R表示氢、C.sub.1-6烷基、芳基、ar(C.sub.1-6)烷基)或.dbd.NOR.sub.8(其中R.sub.8表示C.sub.1-6烷基)取代;X表示直接键、--CH.sub.2 --或--CH.sub.2 0--;Ar表示取代的苯基基团;以及其生理上可接受的盐。这些化合物被指出用于疼痛和脑缺血的治疗。还公开了它们的制备过程和中间体以及含有它们的制药组合物。