A series of thiadiazole derivatives were synthesized with differently substituted benzoic acids which were cyclized to give differently substituted thiazolidin-4-one. Elemental analysis, IR, $^1H$ NMR, $^13}C$ NMR and mass spectral data confirmed the structure of the newly synthesized compounds. The derivatives of these moieties were evaluated for antimicrobial activity. Most of the synthesized compounds showed good antimicrobial activity at 200 and $100\;\mu}g/mL$. Compounds showed most significant antibacterial activity against gram negative test organism Escherichia coli and most significant antifungal activity against test organisms Aspergillus niger and Candida albicans. It was observed that compounds with $OCH_3$ at 3, 4 position of phenyl ring [5(a-l)] were more potent against microbes as compared to compounds having unsubstituted phenyl ring [4(a-l)].
一系列
噻二唑衍
生物通过不同取代基的
苯甲酸环化合成,得到了不同取代基的
噻唑烷-4-
酮。元素分析、红外、$^1H$ NMR、$^13}C$ NMR和质谱数据证实了新合成化合物的结构。这些基团的衍
生物被评估了抗菌活性。大多数合成的化合物在200和$100\;\mu}g/mL$浓度下显示出良好的抗菌活性。化合物对革兰氏阴性试验菌大肠杆菌显示出最显著的抗菌活性,对试验菌黑曲霉和白色念珠菌显示出最显著的抗菌活性。观察到,与未取代
苯环的化合物相比,
苯环3, 4位有$OCH_3$的化合物[5(a-l)]对微
生物的抑制作用更强。