Synthesis, Characterization and Antimicrobial Activity of Bifunctional Sulfonamide-Amide Derivatives
作者:Babul Reddy A. Abbavaram、Hymavathi R.V. Reddyvari
DOI:10.5012/jkcs.2013.57.6.731
日期:2013.12.20
A convenient synthesis of bifunctional sulfonamide-amide derivatives was reported. Amide coupling of 4-methyl benzoic acid 1 followed by reaction with chlorosulfonic acid produce ethyl-4-(3-(chlorosulfonyl)-4-methylbenzoyl)piperazine-1-carboxylate 4. The resulted compound on further treatment with various anilines produces the title sulfonamide-amide derivatives 5a-n. The configurations of these compounds were established by elemental analysis, IR, $^1H$ NMR, mass spectra, and by their preparation from the corresponding 4-methyl benzoic acid 1 and chlorosulfonic acid. All these new compounds demonstrate significant in vitro antibacterial and antifungal activities against all bacterial and fungal strains.
报道了一种方便的双功能磺胺酰胺衍生物的合成方法。首先通过4-甲基苯甲酸1的酰胺偶联反应,再与氯磺酸反应,生成乙基-4-(3-(氯磺酰基)-4-甲基苯甲酰基)哌嗪-1-羧酸酯4。所得化合物进一步与各种苯胺反应,生成目标磺胺酰胺衍生物5a-n。这些化合物的结构通过元素分析、红外光谱、$^1H$核磁共振、质谱以及从相应的4-甲基苯甲酸1和氯磺酸制备得到确认。所有这些新化合物均显示出显著的体外抗菌和抗真菌活性,对所有细菌和真菌株有效。