申请人:American Home Products Corporation
公开号:US04766215A1
公开(公告)日:1988-08-23
The compounds of the following formula are histamine H.sub.1 -receptor antagonists: ##STR1## where R.sup.3 and R.sup.4 are, independently, hydrogen, halo, alkoxy of 1 to 3 carbon atoms or alkyl of 1 to 3 carbon atoms; R.sup.2 is hydrogen or halo; n is one of the integers 0, 1 or 2; p is one of the integers 0 or 1; Y is --N.dbd. or --CH.dbd., with the proviso that when Y is --N.dbd., p is zero, and when Y is --CH.dbd., p is one; and one of X.sub.1 and X.sub.2 is nitrogen and the other is --CH.dbd.; or a pharmaceutically acceptable salt thereof.
以下化学式的化合物是组胺H.sub.1 -受体拮抗剂:##STR1##其中,R.sup.3和R.sup.4分别为氢、卤素、1至3个碳原子的烷氧基或1至3个碳原子的烷基;R.sup.2为氢或卤素;n是0、1或2中的一个整数;p是0或1中的一个整数;Y是--N.dbd.或--CH.dbd.,但当Y是--N.dbd.时,p为零,当Y是--CH.dbd.时,p为一;X.sub.1和X.sub.2中的一个是氮,另一个是--CH.dbd.;或其药学上可接受的盐。