申请人:Merck & Co., Inc.
公开号:US03995039A1
公开(公告)日:1976-11-30
Novel pyrazolo [1,5-a] [1,3,5] triazines are provided which are active agents to inhibit bronchial constriction with very low chronotropic effects. The novel compounds are prepared by the reaction of an appropiately substituted 1-amidino-5-amino pyrazole with an appropriately substituted trialkyl orthoester. Suitable compositions for utilizing this bronchodilating activity by administration to humans are also disclosed.
提供了一种新型吡唑并[1,5-a][1,3,5]三嗪类化合物,其是抑制支气管收缩的活性剂,具有非常低的心脏搏动效应。该新型化合物是通过将适当取代的1-氨基甲酰胺基-5-氨基吡唑与适当取代的三烷基正酯反应制备而成。还公开了适合通过向人类施用来利用该支气管扩张活性的合适组合物。