1-(3'-azido-2',3',5'-trideoxy-beta-D-allofuranosyl) thymine 13, and 1-(3'-azido-3',5'-dideoxy-beta-D-(glucofuranosyl) thymine 20 and its 2'-O-methyl ether 22 were synthesized starting from 1,2-O-isopropylidene-alpha-D-glucopyranose and from 1,2-O-isopropylidene-alpha-D-allofuranose, respectively.
1-(3'-azido-2',3',5'-trideoxy-beta-D-allofuranosyl) thymine 13, and 1-(3'-azido-3',5'-dideoxy-beta-D-(glucofuranosyl) thymine 20 and its 2'-O-methyl ether 22 were synthesized starting from 1,2-O-isopropylidene-alpha-D-glucopyranose and from 1,2-O-isopropylidene-alpha-D-allofuranose, respectively.