[EN] GLYCOPEPTIDE ANTIBIOTIC ANALOGS EFFECTIVE AGAINST VANCOMYCIN-RESISTANT BACTERIAL STRAINS<br/>[FR] ANALOGUES D'ANTIBIOTIQUES GLYCOPEPTIDIQUES EFFICACES CONTRE DES SOUCHES BACTÉRIENNES RÉSISTANTES À LA VANCOMYCINE
申请人:SCRIPPS RESEARCH INST
公开号:WO2013022763A1
公开(公告)日:2013-02-14
The invention is directed to glycopeptide antibiotics and their aglycones that are engineered to overcome bacterial resistance by replacement of a single, specific peptide carboxamide group in the core peptide of the glycopeptide antibiotic with an amidine group. The amidine pseudopeptide analog of the glycopeptide is effective in killing vancomycin-resistant bacteria at therapeutically achievable concentrations in a patient. For example, a [ψ[C(=NH)NH]Tpg4]-vancomycin aglycon designed to exhibit the dual binding to D-Ala-D-Ala and D-Ala-D-Lac needed to reinstate activity against vancomycin-resistant bacteria has been shown to overcome a common mode of bacterial resistance to the "last resort" antibiotics of the glycopeptide class. The pseudopeptide amidine analogs can be prepared from corresponding pseudopeptide thioamide analogs, which can be prepared synthetically, semi-synthetically, or biosynthetically.
Silver(I)-Promoted Conversion of Thioamides to Amidines: Divergent Synthesis of a Key Series of Vancomycin Aglycon Residue 4 Amidines That Clarify Binding Behavior to Model Ligands
作者:Akinori Okano、Robert C. James、Joshua G. Pierce、Jian Xie、Dale L. Boger
DOI:10.1021/ja302808p
日期:2012.5.30
Development of a general Ag(I)-promoted reaction for the conversion of thioamides to amidines is disclosed. This reaction was employed to prepare a key series of vancomycin aglycon residue 4 substituted amidines that were used to clarify their interaction with model ligands of peptidoglycan precursors and explore their resulting impact on antimicrobial properties.
US9879049B2
申请人:——
公开号:US9879049B2
公开(公告)日:2018-01-30
GLYCOPEPTIDE ANTIBIOTIC ANALOGS EFFECTIVE AGAINST VANCOMYCIN-RESISTANT BACTERIAL STRAINS