Leonid A. Yakovishin, Sergey V. Bukharov, Vasily M. Babaev, Elena V. Nikitina, Elena S. Bulatova
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New Molecular Complexes of Glycyrrhizic Acid Monoammonium Salt (Glycyram) with Fluoroquinolone Antibiotics
Aims: The study aimed to search of new molecular complexes of licorice saponin with fluoroquinolone antibiotics and to explore their pharmaceutical potential. Background: Molecular complexation of triterpene glycosides with pharmaceutical substances reduces side effects and therapeutic doses, increases bioavailability and stability, and expands the spectrum of biological activity of drugs. Glycyrrhizic acid is the major triterpene glycoside of licorice. Molecular complexes of monoammonium salt of glycyrrhizic acid (glycyram, GC) with fluoroquinolone antibiotics have not been described. Objectives: This study is devoted to the preparation and analysis of molecular complexes of GC with fluoroquinolones, and investigation of their antimicrobial activity. Methods: Complexation was studied via FT-IR spectroscopy, UV-Vis spectroscopy and mass spectrometry methods. Results: Molecular complexes of GC with fluoroquinolone antibiotics, along with their benzylated derivatives, were obtained for the first time. Conclusion: The complexes composition was defined as 1:1. Intermolecular hydrogen bonds are formed during complexation. In addition, stability constants of 105 М–1 order were calculated. Some complexes are comparable in antimicrobial activity with individual antibiotics ciprofloxacin (CP) and moxifloxacin (Moc) or surpass them in relation to a number of bacteria. These molecular complexes could be potential low-dose drugs with antimicrobial activity.
Current Bioactive CompoundsPharmacology, Toxicology and Pharmaceutics-Pharmacology, Toxicology and Pharmaceutics (all)
CiteScore
1.90
自引率
0.00%
发文量
112
期刊介绍:
The journal aims to provide comprehensive review articles on new bioactive compounds with proven activities in various biological screenings and pharmacological models with a special emphasis on stereoeselective synthesis. The aim is to provide a valuable information source of bioactive compounds synthesized or isolated, which can be used for further development of pharmaceuticals by industry and academia. The journal should prove to be essential reading for pharmacologists, natural product chemists and medicinal chemists who wish to be kept informed and up-to-date with the most important developments on new bioactive compounds of natural or synthetic origin, including their stereoeselective synthesis.