2,3-dideoxy-L-arabino-heptono-1,4-lactone

(S)-(-)-Tetrahydro-5-oxo-2-furancarboxaldehyde

tert-butyl(((2S)-5-methoxytetrahydrofuran-2-yl)methoxy)dimethylsilane

1-(2,3-dideoxy-3-C-selenophenyl-β-D-erythro-pentofuranosyl)thymine

1-[2',3'-dideoxy-3'(R)-phenylseleno-β-D-glycero-pentofuranosyl]thymine