Organoiodine(III) mediated synthesis of 3,9-diaryl- and 3,9-difuryl-bis-1,2,4-triazolo[4,3-a][4,3-c]pyrimidines as antibacterial agents
作者:Om Prakash、Rajesh Kumar、Ravi Kumar、Prikshit tyagi、R.C. Kuhad
DOI:10.1016/j.ejmech.2006.11.019
日期:2007.6
9-di-(4'-nitrophenyl)-bis-1,2,4-triazolo[4,3-a][4,3-c]pyrimidine (3g) and 3,9-di-(5'-nitro-2'-furyl)-bis-1,2,4-triazolo[4,3-a][4,3-c]pyrimidine (3i), were associated with substantially higher antibacterial activity than some commercial antibiotics against Gram-positive bacteria namely Staphylococcus aureus, Staphylococcus epidermidis and Bacillus subtilis; two Gram-negative bacteria namely Salmonella typhi and Escherichia
通过氧化三甲基吡啶已合成了九个3,9-二芳基-和3,9-二呋喃基-双-1,2,4-三唑并[4,3-a] [4,3-c]嘧啶(3a-i)。各种芳醛和糠醛的bis-2,4-嘧啶基hydr与二氯甲烷中的2eq碘代苯二乙酸酯(IBD)进行体外测试,并对其体外抗菌活性进行了测试。三种化合物,即3,9-二-(4'-氟苯基)-双-1,2,4-三唑[4,3-a] [4,3-c]嘧啶(3f),3,9-二-(4'-硝基苯基)-双-1,2,4-三唑并[4,3-a] [4,3-c]嘧啶(3g)和3,9-二-(5'-硝基-2' -呋喃基)-双-1,2,4-三唑并[4,3-a] [4,3-c]嘧啶(3i)的抗菌活性远高于对革兰氏阳性细菌即葡萄球菌的某些商业抗生素。金黄色葡萄球菌,表皮葡萄球菌和枯草芽孢杆菌;