1,3,7-tris-(tert-butyl-dimethyl-silanyloxy)-11-hydroxy-4,4,6,8-tetramethyl-undecan-5-one

11-azido-1,3,7-tris-(tert-butyl-dimethyl-silanyloxy)-4,4,6,8-tetramethyl-undecan-5-one

(3S,6R,7S,8S)-11-(benzyloxy)-1,3,7-tris{[(tert-butyl)dimethylsilyl]oxy}-4,4,6,8-tetramethylundecan-5-one

10,14-bis-(tert-butyl-dimethyl-silanyloxy)-2-(1,2-dimethyl-1H-benzoimidazol-5-yl)-9,11,13,13-tetramethyl-12,16-dioxo-1-oxa-5-aza-cyclohexadecane-5-carboxylic acid tert-butyl ester

(3S,6R,7S,8S)-11-(tert-butoxycarbonyl((S)-3-(1,2-dimethyl-1H-benzo[d]imidazol-5-yl)-3-hydroxypropyl)amino)-3,7-bis(tert-butyldimethylsilyloxy)-4,4,6,8-tetramethyl-5-oxoundecanoic acid