申请人:E. R. Squibb & Sons, Inc.
公开号:US04128716A1
公开(公告)日:1978-12-05
New 4-halo 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, halogen or lower alkoxy; and X is halogen. The new compounds are useful as intermediates and as anti-inflammatory agents.
新的4-卤代吡唆并[1,5-a]喹啉-3-羧酸、酯及其盐的衍生物具有以下公式:##STR1##其中,R.sub.1是氢、低碳基或形成离子的盐;R.sub.2是氢、低碳基、卤素或低碳氧基;X是卤素。这些新化合物可用作中间体和抗炎药物。