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Journals and Conferences
Treatment of 5-(tert-butyldimethylsilyl)-2,3-O-isopropylidene-D-ribose with lithium acetylides gave mixtures of syn- and anti-alkynols 2a-2c which were separated following protection as methoxymethyl ethers. These were converted to the corresponding iodides which underwent 6-exo-dig radical cyclisation to afford chiral cyclohexanes and carbasugars.… (More)
The phosphoramidite (1S,3R,4S)-3-(2-cyanoethoxy(diisopropylamino)phosphinoxymethyl)-5-N-(4-monomethoxytrityl)-1-(uracil-1-yl)-5-aza-2-oxabicyclo[2.2.1]heptane 18 of a novel bicyclic nucleoside structure was synthesized from the known 1-(3'-deoxy-beta-D-psicofuranosyl)uracil 3. Conformational analysis of its structure verified its expected S-type furanose… (More)
The synthesis of analogues of 4-carboxy-5-amino-1-beta-D-ribofuranosylimidazole-5'-phosphate (CAIR) in which the carbonyl group is replaced by a grouping of tetrahedral geometry is described. These are planned as transition state inhibitors of SAICAR synthetase, the enzyme which converts CAIR into its amide with L-aspartic acid.