Singh, Bhawani Singh; Mehta, Deepika; Baregama, Lalit K., Indian Journal of Chemistry - Section B Organic and Medicinal Chemistry, 2004, vol. 43, # 6, p. 1306 - 1313
Effect of chloro and fluoro groups on the antimicrobial activity of 2,5-disubstituted 4-thiazolidinones: a comparative study
作者:Pooja Chawla、Ranjit Singh、Shailendra K. Saraf
DOI:10.1007/s00044-011-9864-1
日期:2012.10
The article reports the synthesis of a series comprising of twenty-one 2,5-disubstituted-4-thiazolidinone derivatives, bearing 3-chloro-4-fluorophenyl imino, 4-chlorophenyl imino and 3-chlorophenyl imino groups at position-2 and substituted arylidene groups at position-5. The title compounds were obtained in high yields through Knoevenagel condensation and evaluated for antimicrobial activity against B. subtilis, S. aureus, P. aeruginosa, E. coli, and C. albicans. Success of the synthesis was confirmed through spectral analysis. The newly synthesized compounds exhibited promising antibacterial activity but no antifungal activity. SAR studies revealed that the presence of a fluoro group in addition to a chloro group had a marked influence on the antibacterial activity.
Singh, Bhawani Singh; Mehta, Deepika; Baregama, Lalit K., Indian Journal of Chemistry - Section B Organic and Medicinal Chemistry, 2004, vol. 43, # 6, p. 1306 - 1313
Novel 2-(substituted phenyl Imino)-5-benzylidene-4-thiazolidinones as possible non-ulcerogenic tri-action drug candidates: synthesis, characterization, biological evaluation And docking studies
作者:Pooja Chawla、Sourav Kalra、Raj Kumar、Ranjit Singh、Shailendra K. Saraf
DOI:10.1007/s00044-018-02288-z
日期:2019.3
The present research was aimed at the synthesis and screening of 35 novel 2-(substituted phenyl imino)-5-benzylidene-4-thiazolidinones having different substitutions at imino phenyl and arylidene groups. The title compounds were synthesized by Knoevenagel condensation at the 5th position of the 4-thiazolidinone ring, in the presence of sodium acetate. The structures were assigned on the basis of spectral