申请人:Sandoz, Inc.
公开号:US04053600A1
公开(公告)日:1977-10-11
The invention discloses 5-substituted-1,2,4-triazolo[4,3-c]quinazolines and 1,2,4-triazolo[1,5-c]quinazolines having pharmacological activity in animals and useful, for example, as hypotensive and anti-inflammatory agents. The compounds may be prepared, for example, by reacting a 5-halo-1,2,4-triazolo-quinazoline with a compound representing the function to be introduced at the 5-position. The 5-halo-1,2,4-triazolo[4,3-c]quinazolines also have pharmacological activity, e.g., hypotensive and anti-inflammatory activity, and may be prepared by reacting a 4-hydrazino-quinazoline with trimethoxy methane. The 5-halo-1,2,4-triazolo[1,5-c]quinazolines also have hypotensive and anti-inflammatory activity and are prepared from the corresponding 1,2,4-triazolo-[1,5-c]quinazolin-5(1H)-one using phosphorus oxychloride, the quinazolin-5(1H)-one being in turn prepared from the 5-halo-1,2,4-triazolo[4,3-c]quinazoline.
本发明公开了具有动物药理活性的5-取代-1,2,4-三唑并[4,3-c]喹唑啉和1,2,4-三唑并[1,5-c]喹唑啉,例如作为降压和抗炎剂等用途。该化合物可以通过将5-卤代-1,2,4-三唑喹唑啉与代表要引入到5位的功能的化合物反应来制备。5-卤代-1,2,4-三唑并[4,3-c]喹唑啉也具有药理活性,例如降压和抗炎活性,并可通过将4-肼基喹唑啉与三甲氧甲烷反应来制备。5-卤代-1,2,4-三唑并[1,5-c]喹唑啉也具有降压和抗炎活性,并可通过使用氧氯化磷从相应的1,2,4-三唑并[1,5-c]喹唑啉-5(1H)-酮制备,而该喹唑啉-5(1H)-酮则是从5-卤代-1,2,4-三唑并[4,3-c]喹唑啉制备的。