Synthesis of Novel 1-Pyrazolylpyridin-2-ones as Potential Anti-Inflammatory and Analgesic Agents
作者:Magda M. F. Ismail、Yousry A. Ammar、Heba S. A. El-Zahaby、Sally I. Eisa、Saber El-Sayed Barakat
DOI:10.1002/ardp.200600197
日期:2007.9
pyrido[2,3‐d]pyrimidine‐6‐carbonitriles have been synthesized and tested for their anti‐inflammatory and analgesic activities. Among the tested compounds, 3e and 8b exhibited comparable anti‐inflammatory activity to the standard (indomethacin). Compounds 5, 7a, and 8b displayed potent analgesic activity. Detailed syntheses, spectroscopic and biological data are reported.
A Facile and Convenient Synthesis of Novel Pyridine Derivatives Incorporating Antipyrine Moiety and Investigation of Their Antimicrobial Activities
作者:Sayed M. Riyadh、Nabila A. Kheder、Ahlam M. Asiry
DOI:10.3987/com-12-12520
日期:——
A series of potentially bioactive piperidines and pyridines, pendant to antipyrine moiety, were synthesized and evaluated in vitro for their antimicrobial potential. Condensation of acetamide 1 with arylaldehydes in (2:1 molar ratio) gave hitherto unreported novel piperidine-3-carboxamide derivatives 4a-c. Also, reaction of acetamide 1 with ethyl 2-cyano-3-(4-nitrophenyl)acrylate afforded unexpected piperidine-3-carboxamide 4c. On the other hands, treatment of acetamide 1 with (arylmethylene)malononitriles 7a,b afforded pyridine-3,5-dicarbonitrile derivatives 10a,b. The structures of the synthesized products were confirmed by IR, H-1 NMR, C-13 NMR and mass spectral techniques.