(1S,2S)-1-(p-nitrophenyl)-2-phthalimido-3-acetoxy-1-propanol

(1S,2S)-2-o-toluamide-1-(4-nitrophenyl)-1,3-O-isopropylidenepropane

(1S,2S)-3-acetoxy-2-acetylamino-1-(4-acetylamino-phenyl)-propan-1-ol

(1S,2R)-threo-1-(4-nitrophenyl)-2-(4-benzylpiperidino)-3-phenylthiomethyl-propan-1-ol

(S)-N-((2S,3S)-2-amino-3-hydroxy-3-(4-nitrophenyl)propyl)-2-((R)-2-amino-3-phenylpropanamido)-4-methylpentanamide hydrochloride