This invention relates to pyrrolo[2,3-b]indole ketones of the formula
where R₁ is loweralkyl, aryl or arylloweralkyl; R₂ is hydrogen, halogen or loweralkyl; R₃ is hydrogen or loweralkyl; R₄ is loweralkyl or arylloweralkyl; R₅ is hydrogen, loweralkyl, loweralkenyl, loweralkynyl, arylloweralkyl, formyl, loweralkylcarbonyl, arylloweralkylcarbonyl or loweralkoxycarbonyl; Y is hydrogen, halogen, loweralkyl or loweralkoxy; the pharmaceutically acceptable addition salts thereof, and where applicable, the geometric and optical isomers and racemic mixtures thereof. The compounds of this invention exhibit utility for alleviating various memory dysfunctions such as Alzheimers disease.
本发明涉及式中的
吡咯并[2,3-b]
吲哚酮
其中 R₁ 是低级烷基、芳基或芳基低级烷基;R₂ 是氢、卤素或低级烷基;R₃ 是氢或低级烷基;R₄ 是低级烷基或芳基低级烷基;R₅ 是氢、低级烷基、低级烯基、低级炔基、芳基低级烷基、甲酰基、低级烷基羰基、芳基低级烷基羰基或低级烷氧基羰基;Y 是氢、卤素、低级烷基或低级烷氧基;其药学上可接受的加成盐,以及(如适用)其几何异构体、光学异构体和外消旋混合物。本发明的化合物可用于缓解阿尔茨海默病等各种记忆功能障碍。