Efficient synthesis of the core structure of muraymycin and caprazamycin nucleoside antibiotics based on a stereochemically revised sulfur ylide reaction
作者:Anatol P. Spork、Stefan Koppermann、Birger Dittrich、Regine Herbst-Irmer、Christian Ducho
DOI:10.1016/j.tetasy.2010.03.037
日期:2010.4
The reaction of protected uridine 5'-aldehydes with sulfur ylides has been reinvestigated Further transformation of the resulting epoxide product provided a compound of which a single crystal for X-ray diffraction was obtained. As a consequence from the elucidated structure, the stereochemical configuration of the epoxide furnished by the sulfur ylide reaction was revised. Based on these results, an efficient synthesis of the core structure of the naturally occurring muraymycin and caprazamycin nucleoside antibiotics was developed. (C) 2010 Elsevier Ltd. All rights reserved
Improved Convergent Synthesis of 5′-epi-Analogues of Muraymycin Nucleoside Antibiotics
作者:Christian Ducho、Anatol Spork、Stefan Koppermann
DOI:10.1055/s-0029-1217742
日期:2009.9
Nucleoside antibiotics represent a promising class of natural products for the development of novel antibacterial agents, with particular respect to structurally simplifiedanalogues maintaining biological activity. There are established truncated 5'-epi-derivatives of muraymycin nucleoside antibiotics with reported antibacterial properties, but the lengthy preparation of such compounds is a major