Telavancin belongs to a class of antibiotics called lipoglycopeptides and works by inhibiting bacterial cell wall synthesis.
CAT No: R2238
CAS No:372151-71-8
Synonyms/Alias:TD-6424; TD 6424; TD6424
Chemical Name:(1S,2R,18R,19R,22S,25R,28R,40S)-22-(2-amino-2-oxoethyl)-5,15-dichloro-48-[(2S,3R,4S,5S,6R)-3-[(2S,4S,5S,6S)-4-[2-(decylamino)ethylamino]-5-hydroxy-4,6-dimethyloxan-2-yl]oxy-4,5-dihydroxy-6-(hydroxymethyl)oxan-2-yl]oxy-2,18,32,35,37-pentahydroxy-19-[[(2R)-4-methyl-2-(methylamino)pentanoyl]amino]-20,23,26,42,44-pentaoxo-36-[(phosphonomethylamino)methyl]-7,13-dioxa-21,24,27,41,43-pentazaoctacyclo[26.14.2.23,6.214,17.18,12.129,33.010,25.034,39]pentaconta-3,5,8(48),9,11,14,16,29(45),30,32,34,36,38,46,49-pentadecaene-40-carboxylic acid
Telavancin is a semisynthetic lipoglycopeptide antibiotic derived from vancomycin, characterized by its unique dual mechanism of action targeting bacterial cell wall synthesis and membrane integrity. Structurally, it features a glycopeptide core conjugated to a hydrophobic side chain, enhancing its interaction with bacterial membranes. Telavancin is primarily recognized in the research community for its potent activity against Gram-positive pathogens, including strains exhibiting resistance to conventional glycopeptides. Its well-defined biochemical profile and robust antibacterial properties have made it a valuable tool in studies exploring cell wall biosynthesis, resistance mechanisms, and membrane-targeted antibiotic strategies.
Antibacterial Mechanism Research: Telavancin serves as a critical molecular probe in investigations focused on the inhibition of peptidoglycan synthesis in Gram-positive bacteria. By binding to the D-Ala-D-Ala termini of cell wall precursors, it effectively disrupts the transglycosylation and transpeptidation steps essential for cell wall assembly. Researchers utilize this compound to elucidate the structural requirements for glycopeptide binding and to map the downstream effects on bacterial viability, enabling a deeper understanding of antibiotic mode of action at the molecular level.
Membrane Interaction Studies: The hydrophobic side chain of telavancin confers an additional mechanism involving direct interaction with the bacterial cytoplasmic membrane, leading to depolarization and increased membrane permeability. This dual-targeting property is exploited in biochemical assays designed to dissect membrane perturbation events, lipid bilayer dynamics, and the resultant effects on bacterial energetics. Such studies provide valuable insights into the design of next-generation antibiotics with enhanced membrane-disruptive capabilities.
Resistance Mechanism Elucidation: Telavancin is frequently employed in research models developed to investigate bacterial resistance to glycopeptide antibiotics. Its activity against strains with reduced susceptibility to vancomycin makes it an ideal candidate for characterizing genetic and phenotypic adaptations in resistant organisms. By leveraging this compound, scientists can identify novel resistance determinants, monitor the evolution of resistance under selective pressure, and assess the efficacy of combination strategies aimed at overcoming established resistance mechanisms.
Analytical Method Development: The distinctive chemical structure and physicochemical properties of telavancin make it a useful reference standard in the development and validation of analytical techniques. It is commonly used in chromatographic and spectrometric assays to establish detection protocols, quantify antibiotic concentrations in complex biological matrices, and support pharmacokinetic profiling in preclinical research. Such applications are essential for ensuring accurate measurement and quality control in laboratory investigations.
Structure-Activity Relationship (SAR) Exploration: Telavancin's modular architecture, combining glycopeptide and lipophilic domains, provides a foundation for systematic structure-activity relationship studies. Researchers use it as a scaffold to synthesize and evaluate novel lipoglycopeptide derivatives, aiming to optimize antibacterial potency, spectrum of activity, and pharmacodynamic properties. These SAR investigations are instrumental in advancing the rational design of new antimicrobial agents with improved efficacy and resistance profiles.
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