Desmethyl Macrolides: Synthesis and Evaluation of 4,10-Didesmethyl Telithromycin.
Desmethyl Macrolides: Synthesis and Evaluation of 4,10-Didesmethyl Telithromycin.
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DOI:
10.1021/ml200254h
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发表时间:
2012-03-08
影响因子:
4.2
通讯作者:
Andrade, Rodrigo B.
中科院分区:
文献类型:
--
作者:
Velvadapu, Venkata;Glassford, Ian;Lee, Miseon;Paul, Tapas;DeBrosse, Charles;Klepacki, Dorota;Small, Meagan C.;MacKerell, Alexander D., Jr.;Andrade, Rodrigo B.
关键词:
Novel sources of antibiotics are required to keep pace with the inevitable onset of bacterial resistance. Continuing with our macrolide desmethylation strategy as a source of new antibiotics, we report the total synthesis, molecular modeling and biological evaluation of 4,10-didesmethyl telithromycin (4), a novel desmethyl analogue of the 3rd-generation drug telithromycin (2). Telithromycin is an FDA-approved ketolide antibiotic derived from erythromycin (1). We found 4,10-didesmethyl telithromycin (4) to be four times more active than previously prepared 4,8,10-tridesmethyl congener (3) in MIC assays. While less potent than telithromycin (2), the inclusion of the C-8 methyl group has improved biological activity suggesting it plays an important role in antibiotic function.
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