A systematic approach, which combines previously reported reactions with appropriate modifications, was established for preparing a variety of selectively deuterated nucleosides from glucose. We have developed a systematic method of synthesizing specifically deuterated nucleosides from glucose. Selectively C-13/H-2-doubly labeled nucleosides, such as [1',2',3',4',5'-C-13(5);3',5'-H-2(2)]- and [1',2',3',4',5'-C-13(5);4',5'-H-2(2)]-adenosines, have been synthesized starting from [ul-C-13(6)]-D-glucose. These labeled nucleosides are very useful for precise conformational analyses of nucleic acids in solution by heteronuclear multidimensional NMR spectroscopy. (C) 1998 Elsevier Science Ltd. All rights reserved.
Studies Towards the Large Scale Chemical Synthesis of the Precursors of Ribonucleosides-3′,4′,5′,5″-<i><sup>2</sup>H</i><sub><i>4</i></sub>and -2′,3′,4′,5′,5″-<i><sup>2</sup>H</i><sub><i>5</i></sub>
作者:András Földesi、Jyoti Chattopadhyaya
DOI:10.1081/ncn-120026632
日期:2003.12.31
A summary delineating the large scale synthetic studies to prepare labeled precursors of ribonucleosides-3',4',5',5''-2H4 and -2',3',4',5',5''-2H5 from D-glucose is presented. The recycling of deuterium-labeled by-products has been devised to give a high overall yield of the intermediates and an expedient protocol has been elaborated for the conversion of 3-O-benzyl-alpha,beta-D-allofuranose-3,4-d2
Biosynthetic Mechanism for<scp>L</scp>-Gulose in Main Polar Lipids of<i>Thermoplasma acidophilum</i>and Possible Resemblance to Plant Ascorbic Acid Biosynthesis
作者:Noriaki YAMAUCHI、Yusuke NAKAYAMA
DOI:10.1271/bbb.130442
日期:2013.10.23
L-Gulose is a very rare sugar, but appears as a sugar component of the main polar lipids characteristic in such a thermophilic archaeon as Thermoplasma acidophilum that lives without cell walls in a highly acidic environment. The biosynthesis of L-gulose in this thermophilic organism was investigated with deuterium-labeling experiments. L-Gulose was found to be biosynthesized fromD-glucosevia stepwise