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  • Title: Synthesis and investigation of the conversion reactions of pyrimidine-thiones with nucleophilic reagent and evaluation of their acetylcholinesterase, carbonic anhydrase inhibition, and antioxidant activities.
    Author: Taslimi P, Sujayev A, Turkan F, Garibov E, Huyut Z, Farzaliyev V, Mamedova S, Gulçin İ.
    Journal: J Biochem Mol Toxicol; 2018 Feb; 32(2):. PubMed ID: 29283199.
    Abstract:
    The conversion reactions of pyrimidine-thiones with nucleophilic reagent were studied during this scientific research. For this purpose, new compounds were synthesized by the interaction between 1,2-epoxy propane, 1,2-epoxy butane, and 4-chlor-1-butanol and pyrimidine-thiones. These pyrimidine-thiones derivatives (A-K) showed good inhibitory action against acetylcholinesterase (AChE), and human carbonic anhydrase (hCA) isoforms I and II. AChE inhibition was in the range of 93.1 ± 33.7-467.5 ± 126.9 nM. The hCA I and II were effectively inhibited by these compounds, with Ki values in the range of 4.3 ± 1.1-9.1 ± 2.7 nM for hCA I and 4.2 ± 1.1-14.1 ± 4.4 nM for hCA II. On the other hand, acetazolamide clinically used as CA inhibitor showed Ki value of 13.9 ± 5.1 nM against hCA I and 18.1 ± 8.5 nM against hCA II. The antioxidant activity of the pyrimidine-thiones derivatives (A-K) was investigated by using different in vitro antioxidant assays, including Cu2+  and Fe3+  reducing, 1,1-diphenyl-2-picrylhydrazyl (DPPH• ) radical scavenging, and Fe2+  chelating activities.
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