期刊
ACS INFECTIOUS DISEASES
卷 5, 期 10, 页码 1718-1730出版社
AMER CHEMICAL SOC
DOI: 10.1021/acsinfecdis.9b00128
关键词
aminoglycosides; multidrug-resistant infectious diseases; decoding A site; selectivity; synthesis
资金
- NIH [AI123352]
- Swiss National Science Foundation (SNF) [407240_166998]
- JPIAMR RIBOTARGET (SNF) [40AR40_185777]
- Swiss National Science Foundation (SNF) [407240_166998, 40AR40_185777] Funding Source: Swiss National Science Foundation (SNF)
A series of derivatives of the 4,5-disubstituted class of 2-deoxystreptamine aminoglycoside antibiotics neomycin, paromomycin, and ribostamycin was prepared and assayed for (i) their ability to inhibit protein synthesis by bacterial ribosomes and by engineered bacterial ribosomes carrying eukaryotic decoding A sites, (ii) antibacterial activity against wild type Gram negative and positive pathogens, and (iii) overcoming resistance due to the presence of aminoacyl transferases acting at the 2'-position. The presence of five suitably positioned residual basic amino groups was found to be necessary for activity to be retained upon removal or alkylation of the 2'-position amine. As alkylation of the 2'-amino group overcomes the action of resistance determinants acting at that position and in addition results in increased selectivity for the prokaryotic over eukaryotic ribosomes, it constitutes an attractive modification for introduction into next generation aminoglycosides. In the neomycin series, the installation of small (formamide) or basic (glycinamide) amido groups on the 2'-amino group is tolerated.
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