Synthesis and cytotoxicity of new thiazolo[4,5-b]pyridine-2(3H)-one derivatives based on α,β-unsaturated ketones and α-ketoacids

Autor: Lozynskyi, Andrii, Zimenkovsky, Borys, Radko, Lidia, Stypula-Trebas, Sylwia, Roman, Olexandra, Gzella, Andrzej, Lesyk, Roman
Zdroj: Chemical Papers; March 2018, Vol. 72 Issue: 3 p669-681, 13p
Abstrakt: A series of thiazolo[4,5-b]pyridin-2(3H)-one derivatives were obtained via [3 + 3]-cyclization of 4-amino-5H-thiazol-2-one and α,β-unsaturated ketones or α-ketoacids. The structures of newly synthesized compounds were established by spectral data and a single-crystal X-ray diffraction analysis. Target compounds were screened for their anticancer activity according to US NCI protocols and moderate inhibitory activity against the tested cell line was confirmed. 5-Phenyl-7-(pyridin-3-yl)-3H-thiazolo[4,5-b]pyridin-2-one (3) and 2-oxo-7-thiophen-2-yl-2,3-dihydrothiazolo[4,5-b]pyridine-5-carboxylic acid (12) were screened for their cytotoxicity effects on HepG2 and Balb/c 3T3 cells which revealed promising results using MTT, NRU and TPC assays.
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