Because of the close structural similarity between triazoloquinazolines and certain 5-membered ring mesoionic heterocycles, all of which possess antiinflammatory activity, we prepared several examples of the novel mesoionic 1,2,4-triazolo[4,3-c]quinazoline ring system for their therapeutic potential. These compounds can be prepared by the cyclization of the appropriately substituted 4-hydrazinoquinazolines
由于三唑并
喹唑啉与某些具有抗炎活性的5元环中离子杂环之间的结构相似,我们制备了一些新的
1,2,4-三唑并[4,3- c ]
喹唑啉环系统用于他们的治疗潜力。这些化合物可以通过用
光气环合适当取代的4-
肼基
喹唑啉来制备。当中离子产物在5位(即
喹唑啉2位)未被取代时,只能以其盐酸盐形式分离,而不能以其不稳定的游离碱形式分离。没有任何一种中离子产物在溶液中足够稳定,无法评估其抗炎活性。