发明授权
US4156005A Derivatives of 1,2-benzisoxazoles 失效
1,2-苯并异恶唑的衍生物

Derivatives of 1,2-benzisoxazoles
摘要:
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.
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