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  • Title: Design, synthesis, structure information and biochemical activity of new floro substituted organotin(IV) carboxylates.
    Author: Shah FA, Fatima K, Sabir S, Ali S, Qadri I, ud Din N.
    Journal: J Photochem Photobiol B; 2016 Jan; 154():99-107. PubMed ID: 26708070.
    Abstract:
    Four new triorganotin(IV) complexes with general formula R3SnL (R=C4H9, C6H5, and L=3-[(fluorophenylamido)]propenoic acid, 3-[(fluorophenylamido)]propanoic acid) were synthesized and characterized by elemental analyses, FT-IR, NMR ((1)H, (13)C and (119)Sn), mass spectrometry and single crystal X-ray structural analysis. The disappearance of the OH peak of the carboxylic acid in the FT-IR and NMR spectra of the compounds conform the formation of the compound and suggests that the complexation occurs via oxygen atoms of the carboxylate moiety. FT-IR date shows the bidentate nature of the carboxylate moiety of the ligand as the Δν value in all complexes is less than 250. Crystallographic data for compound 2 showed that tin has distorted tetrahedral geometry with 433.42° angle around the central tin atom. The compounds (1-4) bind to DNA, resulting hypochromism shifts in UV-visible spectroscopy suggesting an intercalative mode of interactions. The compound-DNA interaction results (UV-visible and Viscometery) encourage using the compounds against HCV. The compounds (1-4) were screened for anti-HCV activity using Huh7.5 cell (human hepatoma cell) by the Gaussia Luciferase Assay and found to be biologically active. Based on Gaussia Luciferase Assay, compound 3 (Tributylstannic [3-(2-fluorophenylamido)propionate]) was taken for quantitative analysis by "QRT-PCR" using the serum of HCV patients and was found to have substantial anti-HCV activity. This work, demonstrated that compound 3 may be used as a potential anti-HCV agent in the future.
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