Design, synthesis, and antimicrobial activity of fused triheterocyclic nitrogen systems involving tetrazolo[1,5-b][1,2,4]triazines [1]
作者:Mamdouh A. M. Taha、Susan M. El-Badry
DOI:10.1007/s00706-008-0902-8
日期:2008.10
Dehydrogenative cyclization of the 6-substituted 7-arylidenehydrazinotetrazolo[1,5- b ][1,2,4]triazines derived from 6-methyl and 6-phenyl derivatives of 7-hydrazinotetrazolo[1,5- b ][1,2,4]triazines and aromatic aldehydes gave the corresponding 6-substituted 9-aryl-[1,2,4]triazolo[4,3- d ]tetrazolo-[1,5- b ][1,2,4]triazines. The latter compounds were also obtained by an alternative route involving dehydrative
衍生自7-肼基四唑[1,5- b ] [1,2-的6-甲基和6-苯基衍生物的6-取代7-亚芳基肼基四唑[1,5- b ] [1,2,4]三嗪的 脱氢环化 ,4]三嗪和芳族醛得到相应的6-取代的9-芳基-[1,2,4]三唑并[4,3- d ]四唑-[1,5- b ] [1,2,4]三嗪。后者的化合物也是通过另一种途径获得的,该途径涉及7-氯四唑[1,5- b] 的6-甲基和6-苯基衍生物的脱水环化 ] [1,2,4]三嗪与芳香酰肼通过可分离的芳酰基肼基中间体形成。同样,三唑四唑并三嗪环是通过用芳族酰氯一锅环化氨基dra环而完成的。通过用亚硝酸将前一个环状酰胺基环化或用叠氮化钠将环状亚氨基酰氯环化,合成了ditetrazolo [1,5- b :1',5'- d ] [1,2,4]三嗪系统。双三唑四唑并三嗪衍生物是通过用可分离的双酰肼产物将二当量的每个环状亚氨基酰氯与酰二酰肼环化而合成的。研究了代表性化合物的抗菌活性。