Compounds are disclosed of formula (I)
wherein
R₁ represents hydroxy, C₁₋₆ alkyl, C₁₋₆ hydroxyalkyl, C₁₋₆ carboxyalkyl, phenyl, oxo, amino, carboxy, amido, -NR₄COR₅ (where R₄ and R₅ both represent C₁₋₆ alkyl), optionally substituted methylidene or, together with the carbon atom to which it is attached, R₁ forms a 5 or 6-membered ring containing one or more heteroatoms;
R₂ and R₃ are the same or different and are C₁₋₆ alkyl or C₃₋₆ alkenyl; or -NR₂R₃ 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, -COR₆ (where R₆ represents C₁₋₆ alkyl, OR₇ or -NHR₇, and R₇ represents hydrogen, C₁₋₆ alkyl, aryl, ar(C₁₋₆)alkyl) or =NOR₈ (where R₈ represents C₁₋₆ alkyl);
X represents a direct bond, -CH₂- or -CH₂O-;
Ar represents a substituted phenyl moiety;
and physiologically acceptable salts thereof.The compounds are indicated as useful for the treatment of pain and cerebral ischaemia.Processes and intermediates for their preparation and pharmaceutical compositions containing them are also disclosed.
披露了公式(I)的化合物,其中
R₁代表羟基,C₁₋₆烷基,C₁₋₆羟烷基,C₁₋₆羧烷基,苯基,氧代,
氨基,羧基,酰胺,-NR₄COR₅(其中R₄和R₅都代表C₁₋₆烷基),可选地取代的亚甲基,或者与它连接的碳原子一起,R₁形成一个含有一个或多个杂原子的5或6元环;
R₂和R₃相同或不同,是C₁₋₆烷基或C₃₋₆烯丙基;或者-NR₂R₃形成一个5元环(可选地含有与氮原子相邻的氧原子)或6元环,该环可选地含有一个不饱和单元,并且该环未取代或被羟基,氧代,可选地取代的亚甲基,-COR₆(其中R₆代表C₁₋₆烷基,OR₇或-NHR₇,R₇代表氢,C₁₋₆烷基,芳基,芳(C₁₋₆)烷基)或=NOR₈(其中R₈代表C₁₋₆烷基)取代;
X代表直接键,-CH₂-或-CH₂O-;
Ar代表取代的苯基部分;
以及它们的生理可接受盐。
这些化合物被指出用于治疗疼痛和脑缺血。还披露了它们的制备过程和中间体以及含有它们的药物组合物。