New 4-amino 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 and R.sub.3 each is hydrogen, lower alkyl, cyclo-lower alkyl, phenyl, substituted phenyl, phenyl-lower alkylene, di-lower alkylamino-lower alkylene or R.sub.2 and R.sub.3 together with the nitrogen form an unsubstituted or substituted 5- or 6-membered nitrogen heterocyclic in which an additional nitrogen or oxygen may be present. R.sub.4 is hydrogen, lower alkyl or halogen. The new compounds are useful as anti-inflammatory agents.
新的
吡唑并[1,5-a]并[1,4]喹噁啉-3-
羧酸,酯及其盐的4-
氨基衍
生物具有以下结构公式:##STR1##其中,R.sub.1为氢,较低的烷基或形成离子的盐;R.sub.2和R.sub.3分别为氢,较低的烷基,环较低的烷基,苯基,取代苯基,苯基-较低的亚烷基,二较低的烷基
氨基-较低的亚烷基,或者R.sub.2和R.sub.3与氮一起形成未取代或取代的5-或6-成员的氮杂环,其中可能存在额外的氮或氧。R.sub.4为氢,较低的烷基或卤素。这些新化合物可用作抗炎药物。