Ce(<scp>iii</scp>)-catalyzed highly efficient synthesis of pyridyl benzamides from aminopyridines and nitroolefins without external oxidants
作者:Zhengwang Chen、Xiaowei Wen、Yiping Qian、Pei Liang、Botao Liu、Min Ye
DOI:10.1039/c7ob03113k
日期:——
An efficient Ce(iii)-catalyzed synthesis of amides and oxazolo[4,5-b]pyridines from 2-aminopyridines and nitroolefins via CC bond cleavage has been developed.
2-(Substituted phenyl)oxazolo[4,5-b]pyridines and 2-(substituted phenyl)oxazolo[5,4-b]pyridines as nonacidic antiinflammatory agents
作者:Robert L. Clark、Arsenio A. Pessolano、Bruce Witzel、Thomas Lanza、T. Y. Shen、C. Gordon Van Arman、Edwin A. Risley
DOI:10.1021/jm00209a014
日期:1978.11
Some 2-(substitutedphenyl)oxazolo[4,5-b]pyridines and 2-(substitutedphenyl)oxazolo[5,4-b]pyridines have good antiinflammatory and analgesic activity. A few possess activity comparable to phenylbutazone or indomethacin without producing the irritation in the gastrointestinal tract that acidic antiinflammatory compounds cause.
against enterotoxin protein of S. aureus which belongs to Staphylococcal enterotoxin type A(SEA). In vitro and in silico studies revealed that compounds 3d, 3g, and 3h have demonstrated significant antibacterial activity in comparison to the standard control drug ampicillin and streptomycin.
Molecular modeling, density functional theory, ADME prediction and antimicrobial activity studies of 2-(substituted)oxazolo[4,5-<i>b</i>]pyridine derivatives
作者:Ismail Celik、Meryem Erol、Gulcan Kuyucuklu
DOI:10.1039/d1nj00701g
日期:——
activities of previously synthesized 2-(substituted)oxazolo[4,5-b]pyridine derivatives toward six bacteria strains and twelve related drug-resistant isolates, and one fungus strain and two related drug-resistant isolates were investigated via the microdilution method. P6 (2-(4-trifluoromethylphenyl)oxazolo[4,5-b]pyridine) and P7 (2-(4-trifluoromethoxyphenyl)oxazolo[4,5-b]pyridine) showed better activity against
本研究考察了先前合成的2-(取代)恶唑并[4,5- b ]吡啶衍生物对6种细菌菌株和12种相关耐药菌株以及1种真菌菌株和2种相关耐药菌株的抗菌活性。通过微量稀释法。P6(2-(4-三氟甲基苯基)恶唑并[4,5- b ]吡啶)和P7(2-(4-三氟甲氧基苯基)恶唑并[4,5- b ]吡啶)对粪肠球菌分离物和大肠杆菌表现出更好的活性。大肠杆菌分离物比氨苄青霉素具有 16 μg mL -1的 MIC 。此外,P5 (2-(4-甲氧基苯基)恶唑并[4,5-b ]吡啶)和P6对铜绿假单胞菌显示出与庆大霉素相当的活性,MIC为16 μg mL -1,而P7显示出比庆大霉素更好的活性,MIC为8 μg mL -1。这些化合物通常表现出良好至强的抗微生物活性。使用 DNA 促旋酶对化合物进行分子对接和分子动力学模拟,并评估相互作用。这些化合物在 DNA 促旋酶 ATP 结合位点显示重叠,具有相似的蛋白质-配体相互作用。apo