The invention provides compounds of formula I,
wherein
R1 and R2 independently represent Cl or C1-6 alkyl;
R3 represents XCO2R4, XCONHSO2R5, YNHSO2R5 or XR6;
R4 represents H or C1-6 alkyl (optionally substituted by aryl or heterocyclyl);
R5 represents CF3, heterocyclyl or C1-6 alkyl (optionally substituted by aryl or heterocyclyl);
R6 represents an acidic heterocycle;
X represents a C1-6 alkyl diradical (optionally substituted by aryl or heterocyclyl); and
Y represents a C2-6 alkyl diradical (optionally substituted by aryl or heterocyclyl); provided that when R1 and R2 each represent Cl, then R3 does not represent CH2CO2H, CH2CO2CH3, CH2CH2NHSO2CF3 or 5-tetrazolylmethyl;
and pharmaceutically acceptable salts thereof.
The compounds are indicated as anxiolytics, anticonvulsants, analgesics and neuroprotectives.
本发明提供了式 I 的化合物、
式中
R1 和 R2 独立地代表 Cl 或 C1-6 烷基;
R3 代表 XCO2R4、XCONHSO2R5、YNHSO2R5 或 XR6;
R4 代表 H 或 C1-6 烷基(可选择被芳基或杂环基取代);
R5 代表
CF3、杂环基或 C1-6 烷基(可选择被芳基或杂环基取代);
R6 代表酸性杂环;
X 代表 C1-6 烷基二环(可选择被芳基或杂环取代);以及
Y 代表 C2-6 烷基二环(任选被芳基或杂环取代);但当 R1 和 R2 各自代表 Cl 时,R3 不代表 CH2CO2H、CH2CO2CH3、CH2CH2NHSO2 或 5-
四唑甲基;
及其药学上可接受的盐类。
这些化合物可用作
抗焦虑药、抗惊厥药、
镇痛药和神经保护剂。