Synthesis of Mannich bases of some 2,5-disubstituted 4-thiazolidinones and evaluation of their antimicrobial activities
TURKISH JOURNAL OF CHEMISTRY, vol.29, no.4, pp.425-435, 2005 (SCI-Expanded, Scopus, TRDizin)
- Publication Type: Article / Article
- Volume: 29 Issue: 4
- Publication Date: 2005
- Journal Name: TURKISH JOURNAL OF CHEMISTRY
- Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus, TR DİZİN (ULAKBİM)
- Page Numbers: pp.425-435
- Keywords: 2,5-disubstituted 4-thiazolidinones, synthesis, Mannich bases, antimicrobial activity, ANTICONVULSANT PROPERTIES, ANTIFUNGAL ACTIVITIES, DERIVATIVES, ANTIBACTERIAL, ISATIN, THIAZOLIDINONES, DERMATOPHYTES, MACRODILUTION, SCHIFF
- Istanbul University Affiliated: Yes
Abstract
4-Carbethoxymethyl-2-[(alpha-chloropropionyl/alpha-bromobutyryl/alpha-chloro-(alpha-phenyl) acetyl) amino] thiazoles (2a-c) were synthesized by the reaction of 4-carbethoxymethyl-2-aminothiazole (1) with alpha-chloropropionyl chloride, alpha-bromobutyryl bromide and a-chloro-a-phenylacetyl chloride, respectively, which were then refluxed with ammonium thiocyanate to obtain 5-substituted 2-[(4-carbethoxymethylthiazol-2-yl)imino]-4-thiazolidinones (3a-c). 3a-c were stirred with formaldehyde and various secondary amines to gain 15 novel compounds with the structure 5-substituted 5-(N,N-disubstituted aminomethyl)-2-[(4-carbethoxymethylthiazol-2-yl)imino]-4-thiazolidinones (4a-o). The antibacterial activities of the compounds against S. aureus ATCC 6538, S. epidermidis ATCC 12228, E. coli ATCC 8739, K. pneumoniae ATCC 4352, P. aeruginosa ATCC 1539, S. typhi, Sh. flexneri and Pr. mirabilis ATCC 14153 were tested using disk diffusion, while the antifungal activities of the compounds against M. gypseum NCPF-580, M. canis, T. mentagrophytes, T. rubrum and C. albicans ATCC 10231 were tested using microdilution.