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.
公式如下:##STR1## 其中:R.sup.1和R.sup.3 = H或低烷氧基;R.sup.2 = 卤素或α-支链低烷基;R.sup.4 = 卤素、卤素低烷基或低烷基
硫醚;但是,如果R.sup.1和R.sup.3 = H,则R.sup.2和R.sup.4不能同时为Cl或Br。这些化合物具有抗炎、退热和镇痛作用,是通过在极其温和的条件下使用
异氰酸酯对应的
水杨醛肟进行环化脱
水反应得到的。