3-N-tert-butoxycarbonyl-3-(R)-aminopyrrolidine
(3R)-1-benzyl-3-[(tert-butoxycarbonyl)(methyl)amino]pyrrolidine
(3R)-3-[(1,1-dimethylethoxycarbonyl)amino]-4-(2,4,5-trifluorophenyl)butanoic acid
(R)-tert-butyl (4-hydroxy-1-(2,4,5-trifluorophenyl)butan-2-yl)carbamate