Pyrazole and Nicotinonitrile Derivatives Synthesized from Sulfa Drugs, and Their Antibacterial Activity
作者:H. A. El-Sayed、A. H. Moustafa、A. A. Fadda、K. E. Abd El-Rahman
DOI:10.1134/s1070363219020270
日期:2019.2
Utility of sulfadiazine and sulfaguanidine in synthesis of new series of pyrazoles and 2-pyridones is described. Diazotization of sulfadiazine that results in formation of diazonium salt 2 followed by coupling of the latter with active methylene compounds leads to hydrazinyl derivatives 3a-3d. Heterocyclization of compounds 3a-3c with hydrazine derivatives gives to a series of pyrazole derivatives 4-6. Similarly, a series of pyrazole derivatives 12-14 is developed from sulfaguanidine. Condensation of hydrazinyl derivatives 3a-3c with cyanoacetamide in the presence of a catalytic amount of piperidine gives 2-oxonicotinonitriles 15a-15c. Tests of the new synthesized compounds against four pathogenic gram (+ve) and gram (-ve) bacteria demonstrate their activity higher than that of the standard Amoxicillin.
Jain; Pandey; Jain, Journal of the Indian Chemical Society, 1988, vol. 65, # 4, p. 298 - 300
作者:Jain、Pandey、Jain
DOI:——
日期:——
JAIN, RAJEEV;PANDEY, PRATIBHA;JAIN, MAMRATA, J. INDIAN CHEM. SOC., 65,(1988) N 4, 298-300
作者:JAIN, RAJEEV、PANDEY, PRATIBHA、JAIN, MAMRATA
DOI:——
日期:——
WRZECIONO U.; GARSTKA-STRZELCZYK I., ACTA POL. PHARM., 1975, 32, NO 3, 279-286
作者:WRZECIONO U.、 GARSTKA-STRZELCZYK I.
DOI:——
日期:——
GOYAL, R. N.;MINOCHA, ASHWANI;SHARMA, SANGEETA, CURR. SCI., 56,(1987) N 21, 1093-1096