methyl 2,4-anhydro-3-azido-3-deoxy-D-lyxonate

methyl 2,4-anhydro-5-O-tertbutyldiphenylsilyl-D-arabinonate

methyl 2,4-anhydro-3-azido-5-O-tertbutyldiphenylsilyl-3-deoxy-D-lyxonate

(2R,3R,4R)-4-(tert-Butyl-diphenyl-silanyloxymethyl)-3-(4-methoxy-benzylsulfanyl)-oxetane-2-carboxylic acid dimethylamide