申请人:Merck & Co., Inc.
公开号:US04156005A1
公开(公告)日:1979-05-22
Substituted 1,2-benzisoxazoles of the formula ##STR1## where: R.sup.1 and R.sup.3 =H or lower alkoxy; R.sup.2 =halo or .alpha.-branched lower alkyl; R.sup.4 =halo, halo lower alkyl, or lower alkylthio; provided, where R.sup.1 and R.sup.3 =H, R.sup.2 and R.sup.4 are other than simultaneously Cl or Br, which are active as antiinflammatory, antipyretic and analgesic agents, are derived from cyclodehydrating the corresponding salicylaldoximes with an isocyanate under extremely mild conditions.
式为##STR1##的1,2-苯并异噁唑类化合物,其中:R.sup.1和R.sup.3 =H或较低的烷氧基;R.sup.2 =卤素或.α.-支链低烷基;R.sup.4 =卤素、卤素低烷基或烷基硫;条件是,当R.sup.1和R.sup.3 =H时,R.sup.2和R.sup.4 不能同时为Cl或Br,这些化合物具有抗炎、退热和镇痛活性,是通过在极其温和的条件下将相应的水杨醛肟与异氰酸酯进行环脱水反应制备的。