(±)-methyl 2,3-dihydroxy-3-phenylpropionate

(2R,3S)-3-Amino-2-benzyloxy-3-phenyl-thiopropionic acid S-tert-butyl ester

S-(tert-butyl) (2R,3S)-3-azido-2-(benzyloxy)-3-phenylpropanethioate

S-tert-butyl (2R,3S)-3-benzoylamino-2-benzyloxy-3-phenylpropanethioate

(2S,3S)-(+)-isobutyl 3-azido-2-hydroxy-3-phenylpropionate