12-[3-azido-1,2-bis-(tert-butyl-dimethyl-silanyloxy)-propyl]-19,20-dibromo-9-tert-butoxycarbonylamino-4-hydroxy-5-iodo-10,13-dioxo-2-oxa-11,14-diaza-tricyclo[15.2.2.13,7]docosa-1(20),3,5,7(22),17(21),18-hexaene-15-carboxylic acid methyl ester

(S)-2-[(2S,3R,4S)-5-Azido-2-[(S)-2-tert-butoxycarbonylamino-3-(4-hydroxy-3,5-diiodo-phenyl)-propionylamino]-3,4-bis-(tert-butyl-dimethyl-silanyloxy)-pentanoylamino]-3-(3,5-dibromo-4-hydroxy-phenyl)-propionic acid methyl ester

4-azido-4-deoxy-2,3,5-tri-O-benzyl-1-O-tert-butyldimethylsilyl-D-ribitol