- Modeling interactions of erythromycin derivatives with ribosomes
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Using a method of static simulation, a series of erythromycin A analogs was designed with aldehyde functions introduced instead of one of the methyl substituents in the 3′-N-position of the antibiotic that was potentially capable of forming a covalent bond with an amino group of one of the nucleotide residues of the 23S rRNA in the ribosomal exit tunnel. Similar interaction is observed for antibiotics of the tylosin series, which bind tightly to the large ribosomal subunit and demonstrate high antibacterial activity. Binding of novel erythromycin derivatives with the bacterial ribosome was investigated with the method of fluorescence polarization. It was found that the erythromycin analog containing a 1-methyl-3oxopropyl group in the 3′-N-position demonstrates the best binding. Based on the ability to inhibit protein biosynthesis, it is on the same level as erythromycin, and it is significantly better than desmethyl-erythromycin. Molecular dynamic modeling of complexes of the derivatives with ribosomes was conducted to explain the observed effects.
- Shishkina,Makarova,Tereshchenkov,Makarov,Korshunova,Bogdanov
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- Synthesis and antibacterial activity of desosamine-modified macrolide derivatives
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Structural factors behind erm macrolide resistance were studied through synthesis of new macrolide derivates possessing truncated desosamine sugar moieties and subsequent determination of their antibacterial activity. Synthesized compounds with 2′-deoxy a
- Letourneau, Nicolas,Vimal, Pavan,Klepacki, Dorota,Mankin, Alexander,Melman, Artem
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scheme or table
p. 4575 - 4578
(2012/08/08)
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- 2'-O,3'-N-BRIDGED MACROLIDES
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Novel 2 ' -O, 3 ' -/V-bridged macrolides useful in treatment of inflammatory diseases. More particularly, the invention relates to 2 ' -O, 3 ' -/V-bridged 14- membered macrolides and to 2 ' - O, 3 ' -/V-bridged 15-membered azalide macrolides useful in treatment of neutrophil dominated inflammatory diseases resulting from neutrophilic infiltration and/or diseases associated with altered cellular functionality of neutrophils, to intermediates for their preparation, to the methods for their preparation, to their use as therapeutic agents, and to salts thereof.
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Page/Page column 38
(2009/12/05)
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- NOVEL MACROLIDE DERIVATIVES HAVAING EFFECT OF POTENTIATING ANTIFUNGAL ACTIVITY
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The present invention relates to substances having enhancing effect for activities ofazole antifungal agents, acting at low concentration and within short term against fungal infection and making possibility for reducing frequency of appearance of resista
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Page/Page column 17
(2008/06/13)
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- MACROCYCLIC COMPOUNDS AND METHODS OF MAKING AND USING THE SAME
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The present invention provides macrocyclic compounds useful as therapeutic agents. More particularly, these compounds are useful as anti-infective, anti-proliferative, anti-inflammatory, and prokinetic agents.
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Page/Page column 193
(2010/02/14)
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