Design, synthesis, structure information and biochemical activity of new floro substituted organotin(IV) carboxylates
2016
Shah, Farooq Ali | Fatima, Kaneez | Sabir, Shaista | Ali, Saqib | Qadri, Ishtiaq | ud din, Noor
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 (1H, 13C and 119Sn), 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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