Z-(4S,5S)-4-hydroxy-pyrrolidin-2-one

(S)-5-[1-Ethoxycarbonyl-meth-(E)-ylidene]-4-isobutyl-oxazolidine-3-carboxylic acid benzyl ester

tert-butyl ((1S)-3-methyl-1-((4R)-4-methyl-1,3-dioxan-2-yl)butyl)carbamate

(4S)-Boc-statine 1,1,2-triphenylethyl ester

(2R)-2-[(1S)-1-[N-(tert-butyloxycarbonyl)amino]-3-methylbutyl]oxirane