[(S)-2-Methyl-1-((R)-5-oxo-tetrahydro-furan-2-yl)-propyl]-carbamic acid tert-butyl ester

rac-N,N-dibenzylvaline

(R)-5-((S)-1-tert-Butoxycarbonylamino-2-methyl-propyl)-2-oxo-tetrahydro-furan-3-carboxylic acid ethyl ester

(4R,5S)-5-tert-Butoxycarbonylamino-4-hydroxy-6-methyl-heptanoic acid ethyl ester

(3R,4S)-4-(dibenzylamino)-5-methylhex-1-yn-3-ol

(3R,4S)-3-(tert-butyldimethylsilyloxy)-4-(dibenzylamino)-5-methylhex-1-yne

(4R,5S)-5-tert-Butoxycarbonylamino-4-methanesulfonyloxy-6-methyl-heptanoic acid ethyl ester

(4R,5S)-5-tert-Butoxycarbonylamino-4-(tert-butyl-dimethyl-silanyloxy)-6-methyl-heptanoic acid ethyl ester

(4R,5S)-4-(tert-Butyl-dimethyl-silanyloxy)-5-dibenzylamino-6-methyl-hept-2-ynoic acid ethyl ester

tert-butyl (S)-2-methyl-1-((S)-oxiran-2-yl)propylcarbamate

(4R,5S)-5-Dibenzylamino-4-hydroxy-6-methyl-hept-2-ynoic acid ethyl ester