Synthesis and Biological Evaluation of 3-Alkoxy Analogues of Flavone-8-acetic Acid
摘要:
New analogues of flavone-8-acetic acid were synthesized, bearing an alkoxy group in position 3 and different substituents on the benzene ring in position 2 of the flavone nucleus. The compounds were tested for direct cytotoxicity against four human tumor cell lines and for indirect antitumor effects by measuring their ability to enhance lytic properties of murine macrophages and human monocytes. Though direct toxicity was very low, the compounds were able to induce significant indirect toxicity. Notably, most of them (4c, 4d, 4e, 4f, 4h, 4i, 4m, 4n, and 4o) showed important activity on human monocytes and could be regarded as the first flavone derivatives endowed with such activity. Particularly interesting seem to be compounds 4m and 4n, which showed IC50 values up to 7 times higher than DMXAA, which has now completed phase I clinical trials.
Ultrasound-Mediated Synthesis of Novel 1,2,3-Triazole-Based Pyrazole and Pyrimidine Derivatives as Antimicrobial Agents
作者:Vidya S. Dofe、Aniket P. Sarkate、Zarina M. Shaikh、Charansingh H. Gill
DOI:10.1002/jhet.2935
日期:2017.11
In the development of novel antimicrobial agents, we synthesized novel 1,2,3‐triazole‐based pyrazole and pyrimidine derivatives 6(a–f) and 7(a–f) by ultrasound‐assisted method. The synthesized compounds were characterized by IR, 1H NMR, 13C NMR, MS, and elemental analysis. All compounds were assessed in vitro for their efficacy as antimicrobial agents against four bacteria (Staphylococcus aureus, Bacillus
在新型抗菌剂的开发中,我们通过超声辅助方法合成了新的基于1,2,3-三唑的吡唑和嘧啶衍生物6(af)和7(af)。通过IR,1 H NMR,13 C NMR,MS和元素分析对合成的化合物进行表征。在体外评估了所有化合物作为抗四种细菌(金黄色葡萄球菌,枯草芽孢杆菌,大肠杆菌和铜绿假单胞菌)和两种真菌(白色念珠菌和黑曲霉)的抗菌剂的功效。)。特别地,化合物6a,6e,7a,7c和7e表现出高度有效的抗微生物活性。