methyl (5S,8S,11S)-8-((1R,2S)-3-(2,3-bis(tert-butoxycarbonyl)guanidino)-1,2-dihydroxypropyl)-11-((tert-butoxycarbonyl)amino)-16-hydroxy-7,10-dioxo-2-oxa-6,9-diaza-1(1,3),3(1,4)-dibenzenacyclododecaphane-5-carboxylate

(R)-4-[(1R,2S)-1,2,3-Tris-(tert-butyl-dimethyl-silanyloxy)-propyl]-oxazolidin-2-one

(R)-2-Oxo-4-[(1R,2S)-1,2,3-tris-(tert-butyl-dimethyl-silanyloxy)-propyl]-oxazolidine-3-carboxylic acid tert-butyl ester

(S)-2-{(2S,3R,4S)-5-Azido-2-[(S)-2-tert-butoxycarbonylamino-3-(4-hydroxy-3,5-diiodo-phenyl)-propionylamino]-3,4-dihydroxy-pentanoylamino}-3-(3,5-dibromo-4-hydroxy-phenyl)-propionic acid methyl ester

12-[3-amino-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