کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
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1360969 | 981453 | 2008 | 28 صفحه PDF | دانلود رایگان |
The design and synthesis of novel 14- to 16-membered 11-azalides starting from 16-membered macrolides are reported. A linear 9-formylcarboxylic acid was isolated via a mobile dialdehyde previously reported. Sequential macrocyclization of the formylcarboxylic acid with amino alcohol followed by deprotection afforded corresponding 14- to 16-membered azalides. On the other hand, reductive amination of the formylcarboxylic acid with an azidoamine followed by macrolactam formation with an amine generated from the azide gave 14- to 16-membered azalactams. Among these derivatives, 15-membered azalactams and 16-membered azalides exhibited characteristic in vitro antibacterial activities. Although optimization of 15-membered azalactams including demycarosyl analogues did not provide remarkably promising molecules, SAR studies of 16-membered azalides disclosed that substitution at the 15 position was very important for identification of a clinical candidate.
The design and synthesis of novel 14- to 16-membered 11-azalides and 11-azalactams starting from 16-membered macrolides are described. Fifteen-substituted 16-membered azalides exhibited more potent antibacterial activities against resistant bacteria of Streptococcus pneumoniae.Figure optionsDownload as PowerPoint slide
Journal: Bioorganic & Medicinal Chemistry - Volume 16, Issue 23, 1 December 2008, Pages 10129–10156