Compounds are presented of the formula ##STR1## wherein R.sub.1 is selected from the group consisting of hydrogen, amino, halogen and nitro; R.sub.2 is selected from the group consisting of hydrogen, lower alkyl, carboxylic acids, esters and primary, secondary or tertiary amides thereof, alkylhydroxy, acylhydroxy-lower alkyl, amino-lower alkyl, alkylamino-lower alkyl, acylamino-lower alkyl and carboxaldehyde; and X is hydrogen or halogen and the pharmaceutically acceptable salts thereof. Also presented are processes to produce the above compounds and intermediates thereof. These compounds exhibit pharmacological activity as anxiolytics, sedatives, muscle relaxants and anticonvulsants.
化合物的公式为##STR1##其中R.sub.1选自氢、
氨基、卤素和硝基组成的组;R.sub.2选自氢、低级烷基、
羧酸、酯和它们的一级、二级或三级酰胺、烷基羟基、酰基羟基-低级烷基、
氨基-低级烷基、烷基
氨基-低级烷基、酰胺基-低级烷基和羧醛;X是氢或卤素及其药学上可接受的盐。还提供了制备上述化合物及其中间体的方法。这些化合物表现出作为
抗焦虑药、镇静剂、肌肉松弛剂和抗惊厥药的药理活性。