present invention provides compounds of the ceneral formula:
wherein
R1 is an aryl, ar(fower)alkyl or pyridyl radical. each of which may be substituted by halogen, amino, lower alkyl. lower alkoxy or carboxy(lower)alkyl,
R2 is a hydrogen or halogen atom.
R3 is an amino, lower alkylamino, acylamino or nitro radical,
R4 is a divalent radical of the general formula -CnH2n- in which n is an integer of from 1 to 7, and
A is oxy, thio, sulfmyl. suifonyl or imino,
the derivatives of the carboxy group, and the pharmaceutically acceptable salts thereof.
The present mventton also provides processes for the preparation of these compounds, as well as pharmaceutical compositions containing trem.
本发明提供通式如下的化合物:
其中
R1 是芳基、芳(下)烷基或
吡啶基,其中每个基团可被卤素、
氨基、低级烷基、低级烷氧基或羧基(低级)烷基取代、
R2 是氢原子或卤素原子。
R3 是
氨基、低级烷基
氨基、酰
氨基或硝基、
R4 是通式为 -CnH2n- 的二价基,其中 n 是 1 到 7 的整数,以及
A 是氧基、
硫基、亚砜基、砜基或亚
氨基、
羧基的衍
生物及其药学上可接受的盐类。
本发明还提供了制备这些化合物的工艺以及含有震颤的药物组合物。