期刊
CARBOHYDRATE RESEARCH
卷 343, 期 7, 页码 1142-1152出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.carres.2008.02.018
关键词
SAAs; configuration; conformation; stability; homodimeric glycotides
The synthesis of methyl 3-azido- and 3-amino-2,3-dideoxyhexopyranosiduronic acids and their methyl esters with the -alpha,beta-D-arabino-, -alpha,beta-D-ribo, and -alpha,beta-L-lyxo configurations is presented. The conformations of the synthesized sugar amino acids and their precursors are discussed on the basis of H-1 NMR data. The influence of the 5-carboxyl group on the pyranose ring conformation is assessed, and the bonding of the monosugar amino acids into dimeric glycotides, using conventional solution-phase peptide syntheses, is reported. (c) 2008 Elsevier Ltd. All rights reserved.
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