The invention relates to oxazole and thiazole derivatives with the general formula I
wherein
X is O or S;
R¹ is halogen, CF₃, CN, NO₂, OH or C₁-C₆ alkoxy;
R² is hydrogen, C₁-C₆ alkyl, aryl, C₇-C₁₃ aralkyl, or an unsubstituted or substituted amino group, which may be part of a 5- or 6-membered ring;
R³ is C₁-C₆ hydrocarbon, C₇-C₁₃ aralkyl, or C₁-C₁₃ acyl;
and their pharmaceutically acceptable acid addition salts.
These new compounds have α₂-antagonist activity without dopamine activity and as such are specifically useful for the treatment of depression and other related illnesses, e.g. for treating patients with anxiety disorders and cognitive disturbances.
本发明涉及通式 I 的
噁唑和
噻唑衍
生物
其中
X 是 O 或 S
R¹ 是卤素、CF₃、CN、NO₂、OH 或 C₁-C₆ 烷氧基;
R² 是氢、C₁-C₆ 烷基、芳基、C₇-C₁₃ 芳烷基或未取代或取代的
氨基,它们可以是 5 或 6 元环的一部分;
R³ 是 C₁-C₆烃基、C₇-C₁₃芳烷基或 C₁-C₁₃酰基;
及其药学上可接受的酸加成盐。
这些新化合物具有α₂-拮抗剂活性,但没有
多巴胺活性,因此特别适用于治疗抑郁症和其他相关疾病,例如治疗焦虑症和认知障碍患者。