Paper
Synthesis, Structural Characterization and Anticancer Activity of New 5-Trifluoromethyl-2-thioxo-thiazolo[4,5-d]pyrimidine Derivatives
Published Jan 1, 2022 · L. Becan, Anna Pyra, Nina Rembiałkowska
Pharmaceuticals
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Abstract
Thiazolo[4,5-d]pyrimidine derivatives are considered potential therapeutic agents, particularly in the development of anticancer drugs. In this study, new 7-oxo-(2a-e), 7-chloro-(3a-e) and also three 7-amino-(4a-c) 5-trifluoromethyl-2-thioxo-thiazolo[4,5-d]pyrimidine derivatives have been synthesized and evaluated for their potential anticancer activity. These derivatives were characterized by spectroscopic methods and elemental analysis, and the single-crystal X-ray diffraction was further performed to confirm a 3D structure for compounds 2e and 4b. The antiproliferative activity evaluation of twelve new compounds was carried out on a variety of cell lines including four human cancer (A375, C32, DU145, MCF-7/WT) and two normal cell lines (CHO-K1 and HaCaT). Four of them (2b, 3b, 4b and 4c) were selected by the National Cancer Institute and evaluated for their in vitro anticancer activity using the NCI-60 screening program. 7-Chloro-3-phenyl-5-(trifluoromethyl)[1,3]thiazolo[4,5-d]pyrimidine-2(3H)-thione (3b) proved to be the most active among the newly synthesized compounds.
In Vitro StudyNew 5-trifluoromethyl-2-thioxo-thiazolo[4,5-d]pyrimidine derivatives show potential anticancer activity, with 7-Chloro-3-phenyl-5-(trifluoromethyl)[1,3]thiazolo[4,5-d]pyrim
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