A simple green synthesis of (Z)-5-arylmethylene-4- thioxothiazolidines and thiopyrano[2,3-d]thiazolidine-2-thiones in PEG-400 under catalyst-free conditions
Synthesis, antimicrobial and cytotoxic activities of some 5-arylidene-4-thioxo-thiazolidine-2-ones
作者:Frederico L. Gouveia、Renata M.B. de Oliveira、Tatiane B. de Oliveira、Ivanildo M. da Silva、Silene C. do Nascimento、Kêsia X.F.R. de Sena、Julianna F.C. de Albuquerque
DOI:10.1016/j.ejmech.2008.10.006
日期:2009.5
Several 5-arylidene-4-thioxo-thiazolidine-2-ones (3a-n) were synthesized and evaluated as antimicrobial agents against representative strains, including multidrug-resistant strains of clinical isolates. Also, the antiproliferative activity was evaluated against two human carcinoma cell lines (NCI-H292 and HEp-2). The compounds containing the 5-arylidene subunit presented greater antimicrobial activities against Gram positive bacteria, including the multidrug-resistant clinical isolates, than the 4-thioxo-thiazolidine-2-one. Important SAR information was also gathered, such as the contribution of thiocarbonyl attached at 4-position on the thiazolidine heterocyclic for antimicrobial properties. None of the derivatives exhibited significant anti proliferative activity against the human carcinoma cell lines. (C) 2008 Elsevier Masson SAS. All rights reserved.
A series of novel 9-substituted-3,7-dithia-5-azatetracyclo[9.2.1.0(2,10).O-4,O-8]tetradecen-4(8)-ones-6 have been synthesized by a stereoselective hetero-Diels-Alder reaction of 5-ylidene-4-thioxo-2-thiazolidone derivatives with norbornene-2. All the compounds have been evaluated for antitumor activity in in vitro human tumor cell lines, and 10 of them possessed significant and selective cytotoxicity (MGM logGI(50) similar to -4.17 to -4.98, for individual cell lines logGI(50) up to -8). COMPARE analyses of differential growth inhibition patterns of compounds at the GI(50) level showed high correlations with some of the antitubulin agents. The lipophilicity of the compounds was studied by RP-TLC and found to correlate well with calculated log P values. Docking and structure-activity relationship studies produced seven QSAR models with 2 or 3 variables, with correlation coefficients r(2) > 0.9 and leave-one-out cross-validation correlation coefficients, q(2) > 0.8. (c) 2006 Elsevier Ltd. All rights reserved.
A simple green synthesis of (<i>Z</i>)-5-arylmethylene-4- thioxothiazolidines and thiopyrano[2,3-<i>d</i>]thiazolidine-2-thiones in PEG-400 under catalyst-free conditions