申请人:Hoffmann-La Roche Inc.
公开号:US04785017A1
公开(公告)日:1988-11-15
The invention relates to compounds of the formula ##STR1## wherein R.sup.1 is hydrogen or lower alkyl; R.sup.2 is hydrogen or halogen; R.sup.3, R.sup.4 and R.sup.5 are hydrogen, acyl or lower alkyl; R.sup.6 and R.sup.7, independently, are hydrogen or lower alkyl; X is alkylene.sub.3-7 ; and n is an integer of zero to four; provided that only one of R.sup.3, R.sup.4 or R.sup.5 can be acyl; enantiomers thereof, and, when R.sup.7 is hydrogen, salts thereof with pharmaceutically acceptable bases. The compounds of formulas I and II are useful as agents for the treatment of allergic conditions.
本发明涉及以下式子的化合物:##STR1## 其中R.sup.1是氢或低烷基;R.sup.2是氢或卤素;R.sup.3、R.sup.4和R.sup.5是氢、酰基或低烷基;R.sup.6和R.sup.7独立地是氢或低烷基;X是烷基ene.sub.3-7;n是0到4的整数;前提是只有R.sup.3、R.sup.4或R.sup.5中的一个可以是酰基;其对映体以及当R.sup.7为氢时,其与药用可接受碱的盐。式I和式II的化合物可用作治疗过敏症的药物。