申请人:Burroughs Wellcome Co.
公开号:US04871865A1
公开(公告)日:1989-10-03
The present invention relates to compounds of formula I ##STR1## or a salt, ester or amide thereof; wherein R.sup.1 is --CH.sub.2 --CH.sub.2 --, CH.sub.2 --O-- or --O--CH.sub.2 --; R.sup.2 and R.sup.3 are the same or different and are each hydrogen, C.sub.1-4 alkyl or taken together with the nitrogen comprise a nitrogen-containing heterocyclic ring having four to six ring members; R.sup.4 is a single bond or a C.sub.1-7 bivalent aliphatic hydrocarbon group and may be joined to the aromatic ring system at the 2,3,8 or 9 positions; n is 0 to 3, and their use as anithistamine and antiasthma agents.
本发明涉及以下式I的化合物##STR1##或其盐、酯或酰胺;其中R.sup.1为--CH.sub.2 --CH.sub.2 --,CH.sub.2 --O--或--O--CH.sub.2 --;R.sup.2和R.sup.3相同或不同,分别为氢、C.sub.1-4烷基或与氮一起构成含有四至六个环成员的含氮杂环环;R.sup.4为单键或C.sub.1-7双价脂肪烃基,可以连接到芳香环系统的2,3,8或9位置;n为0至3,并且它们作为抗组胺和抗哮喘剂的用途。