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Some derivatives of 3-ethyl-2-mercapto-thieno[2,3-d]pyrimidin-4(3H)-ones were synthesized using ethyl 2-aminothiophene-3-carboxylates as precursors in order to estimate their cytotoxicity, respectively proliferative activity.Thienopyrimidinones containing thiosemicarbazide as well as 1,3,4-thiadiazole moieties were evaluated for their cytotoxical effect on four cancer cell lines: HT-29, breast cancer...
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