申请人:Ciba-Geigy Corporation
公开号:US04912125A1
公开(公告)日:1990-03-27
Compounds of the formula ##STR1## wherein each R is hydrogen or one R is hydrogen and the other is lower alkyl, R.sub.1 is hydrogen, lower alkyl, aryl, aralkyl or lower carboalkoxy, R.sub.2 is hydrogen or lower alkyl, and the ring A is unsubstituted or substituted by lower alkyl, lower alkoxy, halo or trifluoromethyl, and pharmaceutically acceptable salts thereof, their preparation, pharmaceutical compositions and the uses thereof, such as .alpha..sub.2 -adrenergic blocking agents, e.g. antidepressants, cognition enhancers and appetite supressants, and as intraocular pressure reducing agents are disclosed.
本发明公开了化学式为##STR1##的化合物,其中每个R是氢或一个R是氢,另一个是较低的烷基,R.sub.1是氢,较低的烷基,芳基,芳基烷基或较低的羧基烷氧基,R.sub.2是氢或较低的烷基,环A未经取代或被较低的烷基,较低的烷氧基,卤素或三氟甲基取代,以及其药学上可接受的盐,其制备,制药组合物和用途,例如作为α2-肾上腺素能阻断剂,例如抗抑郁剂,认知增强剂和食欲抑制剂,以及作为降低眼内压的剂。