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arabinofuranose/leukemija

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Synthesis of 3-hydroxy-2- and -4-pyridone nucleosides as potential antitumor agents.

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The ribo- and arabinofuranosyl nucleosides of antitumor active 2- and 4-pyridones 1a and 2a were prepared by direct condensation of the silylated bases with either 1-O-acetyl-2,3,5-tri-O-benzoyl-D-ribofuranose (4a) or 2,3,5-tri-O-benzyl-1-p-nitrobenzoyl-D-arabinofuranose (7) in the presence of
The preparation and use of 5-deoxy-5-iodo-1,2-O-isopropylidene-alpha-D-xylofuranose and 5-deoxy-5-iodo-1,2-O-isopropylidene-alpha-D-arabinofuranose in the synthesis of the L and D forms of 9-(5-deoxy-alpha-threo-pent-4-enofuranosyl)adenine, respectively, are described. The preparation of
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