1-<3-C-methyl-5-O-(tert-butyldiphenylsilyl)-2,3-dideoxy-α-D-erythro-pentofuranosyl>thymine

1-<3-C-methyl-5-O-(tert-butyldiphenylsilyl)-2,3-dideoxy-β-D-erythro-pentofuranosyl>thymine

(2S,3S)-1-(tert-Butyl-diphenyl-silanyloxy)-3-methyl-5-trityloxy-pentan-2-ol

(3S,4S,5S)-1-(tert-Butyl-diphenyl-silanyloxy)-3,5-dimethyl-7-trityloxy-heptan-4-ol