申请人:Astra Aktiebolag
公开号:US05856346A1
公开(公告)日:1999-01-05
Compounds of the general formula ##STR1## wherein R.sub.1 and R.sub.2 are independently selected from the group consisting of hydrogen, chloro, bromo, nitro, cyano, trifluoromethyl, and R.sub.3 and R.sub.4 are independently selected from straight or branched lower (1-5 carbon atoms) alkyl groups, and including all optical isomers, provided that when R.sub.3 is methyl and R.sub.4 is tert.-butyl, then R.sub.1 /R.sub.2 are not hydrogen/hydrogen, hydrogen/2'-trifluormethyl, 2'-chloro/3'-chloro, and when R.sub.3 is methyl and R.sub.1 /R.sub.2 is hydrogen/3'-nitro, then R.sub.4 are not methyl, ethyl, propyl, iso-propyl, tert.-butyl, processes for their preparation, pharmaceutical preparations containing them and the use of the compounds in lowering the blood pressure.
通式为##STR1##的化合物,其中R.sub.1和R.sub.2分别独立地选择自氢、氯、溴、硝基、氰基、三氟甲基和R.sub.3和R.sub.4分别独立地选择直链或支链低(1-5碳原子)烷基,包括所有光学异构体,前提是当R.sub.3为甲基且R.sub.4为叔丁基时,R.sub.1/R.sub.2不是氢/氢,氢/2'-三氟甲基,2'-氯/3'-氯,当R.sub.3为甲基且R.sub.1/R.sub.2为氢/3'-硝基时,R.sub.4不是甲基、乙基、丙基、异丙基、叔丁基,其制备方法,含有它们的制药制剂以及将这些化合物用于降低血压的用途。