[(1S,2S)-2-(tert-Butyl-dimethyl-silanyloxy)-1-hydroxymethyl-3-triisopropylsilanyloxy-propyl]-carbamic acid tert-butyl ester

(3S)-3-hydroxy-4-(triisopropylsilyloxy)butyric acid methyl ester

(2R,3S)-2-tert-Butoxycarbonylamino-3-(tert-butyl-dimethyl-silanyloxy)-4-triisopropylsilanyloxy-butyric acid methyl ester

(2R,3S)-2-Amino-3-(tert-butyl-dimethyl-silanyloxy)-4-triisopropylsilanyloxy-butyric acid methyl ester

dibenzyl 1-((2R,3S)-3-((tert-butyldimethylsilyl)oxy)-1-methoxy-1-oxo-4-((triisopropylsilyl)oxy)butan-2-yl)hydrazine-1,2-dicarboxylate