申请人:Warner-Lambert Company
公开号:US04056532A1
公开(公告)日:1977-11-01
Alpha-aryl-2-pyridineethanol 1-oxides and alpha-pyridinyl-2-pyridineethanol 1-oxides having the formula I or II: ##STR1## wherein R.sub.1 is hydrogen, halogen, hydroxy, lower alkyl, lower alkoxy, benzyloxy, lower alkanoyloxy, ortho-amino or ortho-lower alkylamino; R.sub.2 and R.sub.3 are each hydrogen, halogen, hydroxy, lower alkyl, lower alkoxy, benzyloxy or lower alkanoyloxy; the pharmaceutically acceptable acid addition salts thereof and a process for the preparation thereof are described. The compounds of this invention are useful in the prevention of allergic and asthmatic reactions.
本发明涉及具有以下式I或II的α-芳基-2-吡啶乙醇1-氧化物和α-吡啶基-2-吡啶乙醇1-氧化物:##STR1## 其中R.sub.1为氢、卤素、羟基、低烷基、低烷氧基、苄氧基、低烷酰氧基、邻氨基或邻低烷基氨基;R.sub.2和R.sub.3分别为氢、卤素、羟基、低烷基、低烷氧基、苄氧基或低烷酰氧基;以及其药学上可接受的酸加合物盐和制备它们的方法。本发明化合物在预防过敏和哮喘反应方面有用。