کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
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1363903 | 981524 | 2008 | 7 صفحه PDF | دانلود رایگان |
The slightly water-soluble 5-nitroindazole derivative (5-NI) and its inclusion with either β-cyclodextrin (βCD) or Heptakis (2,6-di-O-methyl)-β-cyclodextrin (DMβCD) were investigated. The stoichiometric ratios and stability constants describing the extent of formation of the complexes were determined by phase-solubility measurements obtaining type-AL diagrams in both cases. According to the continuous variation method (Job’s plot) a 1:1 stoichiometry has been proposed for the complexes. Also electrochemical studies were carried out on both CDs complexes, where the observed change in the EPC value for DMβCD indicated a lower feasibility of the nitro group reduction. The detailed spatial configuration is proposed based on two-dimensional NMR methods. These results are further interpreted using molecular modeling studies. The latter results are in good agreement with the experimental data.
The inclusion properties of 5-nitroindazole into native and (2,6-dimethyl)-β-cyclodextrin were evaluated using phase-solubility studies, electrochemistry, NMR and molecular modeling techniques.Figure optionsDownload as PowerPoint slide
Journal: Bioorganic & Medicinal Chemistry - Volume 16, Issue 9, 1 May 2008, Pages 5078–5084