摘要:
The synthesis of methyl 3,5-di-O-benzoyl-2-deoxy-2-fluoro-2-C-methyl-b-D-ribofuranoside and the conversion to the corresponding 1-O-acetyl-3,5-di-O-benzoyl-2-deoxy-2-fluoro-2- C-methyl-D-ribofuranose and 1,3,5-tri-O-benzoyl-2-deoxy-2-fluoro-2-C-methylD-ribofuranose is reported. The key synthetic step is the fluorination of the tertiary center of methyl 3,5-di-O-benzyl-2-C-methyl-b-D-arabinofuranoside to provide methyl 3,5-di-O-benzyl-2-deoxy-2-fluoro-2-C-methyl-b-D-ribofuranoside.[GRAPHICS]