(S)-2-Azido-propionic acid (1R,2S,5R)-5-methoxy-1-[1-((S)-1-methoxycarbonyl-ethylcarbamoyl)-1-methyl-ethyl]-2-methyl-octyl ester

(S)-2-Azido-3-(tert-butyl-dimethyl-silanyloxy)-2-methyl-propionic acid

(S)-2-((3R,4S,7R)-3-Hydroxy-7-methoxy-2,2,4-trimethyl-decanoylamino)-propionic acid methyl ester

(2S)-5-benzyloxy-2-methyl-1-pentanal

(2S,3S)-2-{[(S)-2-Azido-3-(tert-butyl-dimethyl-silanyloxy)-2-methyl-propionyl]-methyl-amino}-3-methyl-pentanoic acid