1-Aminoacetamidopyrroles and 1-amino-2-(substituted) pyrroles and their use for the treatment of neurodegenerative dysfunctions
申请人:HOECHST-ROUSSEL PHARMACEUTICALS INCORPORATED
公开号:EP0582182A1
公开(公告)日:1994-02-09
The present invention relates to compounds of the general formula
wherein
R₁ ishydrogen or loweralkyl;
R₂ ishydrogen, loweralkyl, hydroxyloweralkyl, acyloxyloweralkyl or loweralkoxyloweralkyl;
R₃ ishydrogen or loweralkyl;
or
R₂ and R₃taken together form a cycloalkyl ring of 3 to 7 carbon atoms;
R₄ ishydrogen, loweralkyl, aryl or arylloweralkyl;
R₅ ishydrogen, loweralkyl, acyl, aryloxycarbonyl, loweralkoxycarbonyl, or arylloweralkoxycarbonyl;
X ishydrogen, halogen, cyano, loweralkyl, aryl, arylloweralkyl, hydroxyloweralkyl, arylhydroxyloweralkyl, aminoloweralkyl, loweralkylaminoloweralkyl, diloweralkylaminoloweralkyl, arylsulfonyl, loweralkylsulfonyl;
m and n areindependently 0 to 5 with the proviso that the sum of m and n does not exceed 5;
p is0, 1 or 2; and
wherein the dotted line between the pyrrole ring and the carbonyl group represents an optional bond; when said bond ist present, R₆ is hydrogen, loweralkyl, hydroxy, loweralkoxy, amino, loweralkylamino, diloweralkylamino, or
where Y is hydrogen, halogen, loweralkyl, loweralkoxy, hydroxy, trifluormethyl or nitro; or heteroaryl selected from
where Z is hydrogen, halogen or loweralkyl, with the proviso that when m and n are each zero and when R₂ and R₃ are each hydrogen and R₆ is phenyl or substituted phenyl and together with he carbonyl group is attached at the 2-position of the pyrrole ring, Y cannot be hydrogen, halogen, trifluoromethyl or nitro;
or a pharmaceutically acceptable acid addition salt thereof, or where applicable an optical or geometrical isomer or racemic mixture thereof.
The compounds of this invention are useful as glycine partial agonists and for the enhancement of learning and memory and in the treatment of memory dysfunction associated with neurodegenerative disorders and are thus indicated in the treatment of Alzheimer's disease and other senile demantias.
本发明涉及通式如下的化合物
式中
R₁ 是氢或低级烷基;
R₂ 是氢、低级烷基、羟基低级烷基、酰氧基低级烷基或低级烷氧基低级烷基;
R₃ 是氢或低级烷基;
或
R₂ 和 R₃ 共同形成 3 至 7 个碳原子的环烷基环;
R₄ 是氢、低级烷基、芳基或芳基低级烷基;
R₅ 是氢、低级烷基、酰基、芳氧基羰基、低级烷氧基羰基或芳基低级烷氧基羰基;
X 是氢、卤素、氰基、低级烷基、芳基、芳基低级烷基、羟基低级烷基、芳基羟基低级烷基、氨基低级烷基、低级烷基氨基低级烷基、稀低级烷基氨基低级烷基、芳基磺酰基、低级烷基磺酰基;
m 和 n 分别为 0 至 5,但 m 和 n 之和不超过 5;
p 为 0、1 或 2;以及
其中,吡咯环和羰基之间的虚线代表任选键;当所述键存在时,R₆是氢、低级烷基、羟基、低级烷氧基、氨基、低级烷基氨基、稀低级烷基氨基,或
其中 Y 是氢、卤素、低级烷基、低级烷氧基、羟基、三氟甲基或硝基;或选自以下的杂芳基
其中 Z 为氢、卤素或低级烷基,但当 m 和 n 均为零,R₂ 和 R₃ 均为氢,R₆ 为苯基或取代苯基并与羰基一起连接在吡咯环的 2 位时,Y 不能为氢、卤素、三氟甲基或硝基;
或其药学上可接受的酸加成盐,或(如适用)其光学或几何异构体或外消旋混合物。
本发明的化合物可作为甘氨酸部分激动剂,用于增强学习和记忆能力,以及治疗与神经退行性疾病相关的记忆功能障碍,因此适用于治疗阿尔茨海默氏症和其他老年痴呆症。