(1'S,5R)-1-(benzyloxycarbonyl)-3-(1'-phenyleth-1'-yl)-5-butylimidazolidin-4-one

DL-正亮氨酸

di-tert-butyl 1-((R)-1-((1R,2S)-2-(dimethylamino)-1-phenylpropoxy)-1-oxohexan-2-yl)hydrazine-1,2-dicarboxylate

L-norleucine benzylester

(R)-(1S,2R,4R)-1-((N,N-dicyclohexylsulfamoyl)methyl)-7,7-dimethylbicyclo[2.2.1]heptan-2-yl 2-azidohexanoate