Abstract
On the basis of pharmacophoric modelling studies of existing NNRTIs, a series of isatin β-thiosemicarbazone derivatives was synthesized and evaluated for their anti-HIV activity in HTLV-III B strain in the CEM cell line. Three compounds showed significant anti-HIV activity, whereupon compound 6 was found to be the most active compound with an EC 50 value of 2.62 μM and a selectivity index of 17.41, while not being cytotoxic to the cell line at a CC 50 value of 44.90 μM. Other tested compounds exhibited marked activity below their toxicity threshold.
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