Anticancer thiopyrano[2,3-d][1,3]thiazol-2-ones with norbornane moiety. Synthesis, cytotoxicity, physico-chemical properties, and computational studies
作者:Roman Lesyk、Borys Zimenkovsky、Dmytro Atamanyuk、Frank Jensen、Katarzyna Kieć-Kononowicz、Andrzej Gzella
DOI:10.1016/j.bmc.2006.03.053
日期:2006.8
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.