申请人:Riker Laboratories, Inc.
公开号:US04477450A1
公开(公告)日:1984-10-16
1,2,4-Triazolo[4,3-c]pyrimidines substituted at the 5 or 7 position through a nitrogen atom which is part of a heterocyclic ring have been found to have potent bronchodilator activity and to be useful synthetic intermediates in the preparation of 1,2,4-triazolo[1,5-c]-pyrimidines. Methods for inducing bronchodilation, pharmaceutical compositions, and synthetic processes and intermediates are also described.
通过异环戊二酮环的一氮原子在5或7位置取代的1,2,4-三唑并[4,3-c]嘧啶已被发现具有强效的支气管扩张活性,并在制备1,2,4-三唑并[1,5-c]-嘧啶的合成中发挥重要作用。同时还描述了诱导支气管扩张的方法、药物组合物以及合成过程和中间体。