Abstract:
:A new structurally distinct class of 14-membered-ring macrolides is characterized by a keto-function instead of the cladinose sugar, well-known for its fragility even in weakly acidic media. This new class called ketolides is endowed with remarkable antibacterial activity against macrolide-resistant strains. A complete assignment of the 1H and 13C NMR spectra of RU 004 in deuteriochloroform, methanol-d4 and D2O has been made using different two-dimensional (2D) chemical-shift correlation methods. The study of ketolide-ribosome interaction has been investigated using 2D transferred nuclear Overhauser effect spectroscopy (TRNOESY). A comparison of the conformations in solution and bound to ribosomes was made with those of previous macrolides. This study can highlight some of the significant differences between RU 004 and other antibiotics.
journal_name
J Med Chemjournal_title
Journal of medicinal chemistryauthors
Bertho G,Gharbi-Benarous J,Delaforge M,Lang C,Parent A,Girault JPdoi
10.1021/jm970852isubject
Has Abstractpub_date
1998-08-27 00:00:00pages
3373-86issue
18eissn
0022-2623issn
1520-4804pii
jm970852ijournal_volume
41pub_type
杂志文章abstract::We previously reported that [[N-[3beta-hydroxyllup-20(29)-en-28-oyl]-7-aminoheptyl]carbamoyl]methane (A43D, 4) was a potent HIV-1 entry inhibitor. However, 4 was inactive against HIV-2 virus, suggesting the structural requirements for targeting these two retroviruses are different. In this study, a series of new betul...
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