Synthesis, Characterization and Antimicrobial Activity of New Thiadiazole Derivatives
作者:Pooja Mullick、Suroor A. Khan、Surajpal Verma、Ozair Alam
DOI:10.5012/bkcs.2010.31.8.2345
日期:2010.8.20
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)].
Synthesis of 2‐(5‐Substituted‐1,3,4‐thiadiazolo‐2‐ylimino)‐4‐thiazolidinones under Microwave Irradiation
作者:Xi-Cun Wang、Guo-Li Huang、Zheng-Jun Quan、Cheng-Wei Lv、Wen-Long Yang
DOI:10.1080/00397910701845852
日期:2008.2.1
Fifteen 2-(5-substituted-1,3,4-thiadiazolo-2-ylimino)-4-thiazolidinones were efficiently synthesized from the reaction of ammonium thiocyanate with 2-chloro-N-(5-substutited-1,3,4-thiadiazolo-2-yl)acetamides under microwave irradiation. The target compounds were obtained in better yields (75-98%) and shorter time (5min) than with conventional heating.
Thiadiazole Derivatives as Potential Anticonvulsant Agents
作者:Pooja Mullick、Suroor A. Khan、Surajpal Verma、Ozair Alam
DOI:10.5012/bkcs.2011.32.3.1011
日期:2011.3.20
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 synthesized compounds. The derivatives of these moieties were evaluated for anticonvulsant activity by MES model and neurotoxicity by rotarod method. The synthesized compounds showed good potential for anticonvulsant activity besides this, the compounds also showed neurotoxic effect. It was observed that compounds with $OCH_3$ at 3, 4 position of phenyl ring [5(a-l)] showed less protection against convulsions as compared to compounds having unsubstituted phenyl ring [4(a-l)].