(Z)-1-<2-Deoxy-3,5-bis-O-(4-methylbenzoyl)-β-D-erythro-pentofuranosyl>-5-(phenylmethylene)-2,4-imidazolidinedione

3,5-di-O-benzyl-2-deoxy-4-O-(5,5-dimethyl-1,3,2-dioxaphosphorinan-2-yl)-D-erythro-pentose diethyl dithioacetal

3,5-di-O-benzyl-2-deoxy-4-O-(5,5-dimethyl-2-thiono-1,3,2-dioxaphosphorinan-2-yl)-D-erythro-pentose diethyl dithioacetal

Acetic acid (3S,4R)-4-azido-3,5-bis-benzyloxy-1-(2,4-bis-benzyloxy-pyrimidin-5-yl)-pentyl ester

(4R,5S)-5-(tert-Butyl-diphenyl-silanyloxy)-4-(tert-butyl-diphenyl-silanyloxymethyl)-2-phenylselanylmethyl-7-vinyl-[1,3]dioxepane