申请人:Burroughs Wellcome Co.
公开号:US04923892A1
公开(公告)日:1990-05-08
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 antihistamine and antiasthma agents.
本发明涉及式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,均为氢、C.sub.1-4烷基或与氮一起组成含有四至六个环成员的含氮杂环;R.sup.4为单键或C.sub.1-7双价脂肪族碳氢基团,并可连接到2,3,8或9位置的芳香环系统上;n为0至3,并且它们可用作抗组胺和抗哮喘剂。