Journal
RUSSIAN JOURNAL OF PHYSICAL CHEMISTRY A
Volume 97, Issue 3, Pages 469-476Publisher
MAIK NAUKA/INTERPERIODICA/SPRINGER
DOI: 10.1134/S0036024423030135
Keywords
cyclodextrin; fingolimod; complexation; solubilization
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The solubilizing effect of beta-cyclodextrin on the immunosuppressant fingolimod is studied for the first time. The study reveals a possible 20x increase in the solubility of fingolimod due to its interaction with beta-cyclodextrin. H-1 NMR spectroscopy and computer modeling provide insights into the configuration and stability of the resulting inclusion complexes, suggesting the formation of hydrogen bonds between the two molecules.
The solubilizing effect of beta-cyclodextrin on fingolimod, a new generation immunosuppressant, is studied for the first time. A possible 20x increase in the solubility of fingolimod due to the penetration of the hydrophobic fragment of the drug molecule into the macrocyclic cavity of the cyclodextrin is shown. Data driven H-1 NMR spectroscopy and computer modeling suggest the configuration of the resulting inclusion complexes. The constant of the complex's stability and its energy of complexation are calculated, and the formation of hydrogen bonds between fingolimod and beta-cyclodextrin is considered.
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