Scheme 3.
Synthesis of 1-C-phenyl-D-ribofuranosyl analogues 15.
Reagents and Conditions: (i) (a) Acetone, H+; (b) Ac2O, pyridine; (c) piperidine, THF, 55% for the three steps; (d) PCC, CH2Cl2; (ii) PhLi, THF, −70 °C, 3 h, 53%.
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