申请人:E. R. Squibb & Sons, Inc.
公开号:US04052393A1
公开(公告)日:1977-10-04
New 4-substituted derivatives of pyrazolo[1,5-a]-quinoxaline-3-carboxylic acid, esters and their salts have the formula ##STR1## R.sub.1 is hydrogen, lower alkyl or a salt forming ion; R.sub.2 is hydrogen, lower alkyl, phenyl-lower alkylene or amino-lower alkylene; R.sub.3 is hydrogen, lower alkyl, halogen or lower alkoxy; and X is oxygen or sulfur. The new compounds are useful as anti-inflammatory agents.
新的4-取代吡唑并[1,5-a]-喹啉-3-羧酸酯及其盐衍生物的化合物具有以下式子:##STR1##其中,R.sub.1为氢,低碳基或盐形成离子;R.sub.2为氢,低碳基,苯基-低碳基亚烷基或氨基-低碳基亚烷基;R.sub.3为氢,低碳基,卤素或低碳氧基;X为氧或硫。这些新的化合物可用作抗炎药物。