(S)-N-[Bis-(4-methoxy-phenyl)-methyl]-2-[(2R,3R)-2-[(R)-2-(tert-butoxycarbonyl-methyl-amino)-4-methyl-pentanoylamino]-3-(tert-butyl-dimethyl-silanyloxy)-3-(3-chloro-4-hydroxy-phenyl)-propionylamino]-succinamic acid

(R)-2-Amino-2-[3,5-dibromo-4-(pyrrolidin-1-ylazo)-phenyl]-ethanol

Asn(Mbh)-OMe

(S)-2-[(2R,3R)-3-(4-Benzyloxy-phenyl)-2-[(R)-2-(tert-butoxycarbonyl-methyl-amino)-4-methyl-pentanoylamino]-3-(tert-butyl-dimethyl-silanyloxy)-propionylamino]-N-[bis-(4-methoxy-phenyl)-methyl]-succinamic acid methyl ester

(2R,3R)-2-Amino-3-(4-benzyloxy-phenyl)-3-hydroxy-propionic acid ethyl ester