Scheme 9.
Synthesis of 3'(S)-C-phenyl-β-D-xylofuranosyluracil (4).
Reagents and Conditions: (i) Reference [9]; (ii) Ph3Al, CH2Cl2, rt, 1 h; (iii) TBAF, THF, rt, 2 h, 26% for the two steps.
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