2'-(N-benzyl-N-mesitylenesulfonylamino)-1'-phenylpropyl (1'S,2S,2'R,3S)-2,4-dimethyl-3-hydroxy-thiolpentanoate

(2S,3S)-3-Hydroxy-2-methyl-pent-4-enethioic acid S-{(1S,2R)-2-[benzyl-(2,4,6-trimethyl-benzenesulfonyl)-amino]-1-phenyl-propyl} ester

(2S,3S)-3-Hydroxy-2,5-dimethyl-hexanethioic acid S-{(1S,2R)-2-[benzyl-(2,4,6-trimethyl-benzenesulfonyl)-amino]-1-phenyl-propyl} ester

(2S,3S)-3-(tert-Butyl-dimethyl-silanyloxy)-2,5-dimethyl-hexanethioic acid S-{(1S,2R)-2-[benzyl-(2,4,6-trimethyl-benzenesulfonyl)-amino]-1-phenyl-propyl} ester

(2S,3R)-3-(tert-Butyl-dimethyl-silanyloxy)-2,4-dimethyl-pent-4-enethioic acid S-{(1S,2R)-2-[benzyl-(2,4,6-trimethyl-benzenesulfonyl)-amino]-1-phenyl-propyl} ester