申请人:Hoffmann-La Roche Inc.
公开号:US04539419A1
公开(公告)日:1985-09-03
Compounds of the formula ##STR1## wherein R is hydrogen or lower alkyl, X is hydrogen or halogen, and A is the group ##STR2## wherein R.sub.1 is hydrogen, acyl or lower alkyl, R.sub.2 is hydrogen or lower alkyl, m is an integer from 2 to 4, n is an integer from 1 to 3, and t is an integer from 1 to 5, provided that R.sub.1 is adjacent to --(CH.sub.2).sub.m [O(CH.sub.2).sub.m ].sub.n O--, and, when R.sub.2 is hydrogen, salts thereof with pharmaceutically acceptable bases, are described. The compounds of formula I are useful as agents for the treatment of allergic conditions.
式为##STR1##的化合物,其中R为氢或较低的烷基,X为氢或卤素,A为基团##STR2##,其中R.sub.1为氢、酰基或较低的烷基,R.sub.2为氢或较低的烷基,m为2至4的整数,n为1至3的整数,t为1至5的整数,前提是R.sub.1邻接于--(CH.sub.2).sub.m [O(CH.sub.2).sub.m ].sub.n O--,当R.sub.2为氢时,其与药用可接受碱的盐被描述。式I的化合物可用作治疗过敏症状的药物。