申请人:John Wyeth and Brother Limited
公开号:US04866075A1
公开(公告)日:1989-09-12
The invention concerns compounds of formula: ##STR1## wherein R.sub.1 is hydrogen, lower alkyl, halogen, lower alkoxy or hydroxy; R.sub.2 represents hydrogen or lower alkyl; A represents an alkylene, oxoalkylene or hydoxyalkylene chain each having 2 to 6 carbon atoms, R.sub.3 and R.sub.4 may be in the same or different rings and independently represent hydrogen, lower alkyl, lower alkoxy, amino or halogen and one of X and Y represents nitrogen the other represents CR.sub.5 wherein R.sub.5 is one of the values for R.sub.3 or R.sub.5 is the bond to the NHCO group; or a pharmaceutically acceptable salt thereof, which compounds possess antihypertensive activity whilst exhibiting reduced CNS depressant properties. Also disclosed are processes for preparing the compounds and pharmaceutical compositions containing them.
本发明涉及公式:##STR1##其中R.sub.1为氢、较低的烷基、卤素、较低的烷氧基或羟基;R.sub.2代表氢或较低的烷基;A代表具有2到6个碳原子的烷基、氧代烷基或羟基烷基链;R.sub.3和R.sub.4可以在相同或不同的环中,并且独立地表示氢、较低的烷基、较低的烷氧基、氨基或卤素,其中X和Y中的一个表示氮,另一个表示CR.sub.5,其中R.sub.5是R.sub.3的值之一,或R.sub.5是NHCO基团的键;或其药学上可接受的盐,这些化合物具有降压活性,同时表现出降低中枢神经系统抑制剂的特性。还公开了制备这些化合物的过程和含有它们的药物组合物。