申请人:Sandoz Ltd.
公开号:US05141951A1
公开(公告)日:1992-08-25
Compounds of formula I ##STR1## wherein R.sub.1 is alkyl, alkoxy, alkylthio, alkylamino, aryl, aryloxy, arylthio, arylamino, aralkyl, aralkoxy, aralkylthio or aralkylamino, R.sub.2 and R.sub.3 are each independently hydrogen, halogen, hydroxy, mercapto, nitro or amino or have the meanings given for R.sub.1, and X is --NH.sub.2, --NH--OH, --N(R.sub.4)OH, --NH--NH.sub.2 or --NH--N.dbd.C(R.sub.4)R.sub.5, wherein R.sub.4 and R.sub.5 are each alkyl, in free form or pharmaceutically acceptable salt form, have pharmaceutical utility, in particular in the treatment or prophylaxis of asthma, or in the treatment of inflammation or psoriasis.
化学式I的化合物其中R.sub.1是烷基,烷氧基,烷硫基,烷基氨基,芳基,芳氧基,芳硫基,芳基胺基,芳基烷基,芳基烷氧基,芳基烷硫基或芳基烷胺基,R.sub.2和R.sub.3分别独立地是氢,卤素,羟基,巯基,硝基或氨基或具有给定R.sub.1的含义,X是--NH.sub.2,--NH--OH,--N(R.sub.4)OH,--NH--NH.sub.2或--NH--N.dbd.C(R.sub.4)R.sub.5,其中R.sub.4和R.sub.5各自是烷基,以自由形式或药用盐形式具有药用价值,特别是在哮喘的治疗或预防中,或在炎症或牛皮癣的治疗中。