Reaction of 1,5-anhydro-2-deoxy-2-formyl-3,4,6-tri-O-methyl-D-lyxo-hex-1-enitol 1 and its arabino epimer 3 with various nucleophiles under Lewis acid catalysis led to stereoselective C-3 substitution.
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Booma et al. (1993) studied this question.
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