Synthesis and Microbial Activity of Novel 3-Methyl-2-pyrazolin-5-one Derivatives
| Autor: | Mohamed S. Mostafa, Nasser M. Abd El-Salam, Othman Y. Alothman |
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| Jazyk: | angličtina |
| Rok vydání: | 2013 |
| Předmět: | |
| Zdroj: | Journal of Chemistry, Vol 2013 (2013) |
| Druh dokumentu: | article |
| ISSN: | 2090-9063 2090-9071 |
| DOI: | 10.1155/2013/183130 |
| Popis: | 2-Oxo-2H-chromene-3-carbohydrazide derivatives 2a,b react with 2-{[4-(substituted thiazol-2-yl)iminoethyl)-phenyl]hydrazono}-3-oxo-butyric acid ethyl esters 4a–c to give 3-methyl-1-[(2-oxo-2H-chromen-3-yl) carbonyl]-4-{[4-(substituted thiazol-2-yl)iminoethyl)-phenyl]hydrazono}]-2-pyrazolin-5-one derivatives 5a–f. A considerable increase in the reaction rate had been observed with better yield using microwave irradiation for the synthesis of compounds 2a, b, 3a–c, and 5a–f. The synthesized products were tested against B. subtilis, S. aureus, and E. coli as well as C. albicans compared with tetracycline and nystatin as reference drugs. |
| Databáze: | Directory of Open Access Journals |
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