(R)-N-trimethylsilylethoxycarbonyl-4-fluoro-3-nitrophenylalanine

(1S)-N-(trifluoroacetyl)-1-(5-hydroxy-3-methoxyphenyl)-2-(methoxyethoxy-methoxy)ethylamine

(R)-N-trimethylsilylethoxycarbonyl-4-fluoro-3-nitrophenylalanine methyl ester

((R)-1-{3-[3-((S)-1-Amino-2-hydroxy-ethyl)-5-methoxy-phenoxy]-4-methoxy-phenyl}-2-benzyloxy-ethyl)-carbamic acid tert-butyl ester

[(R)-2-Hydroxy-1-(4-methoxy-3-{3-methoxy-5-[(S)-2-(2-methoxy-ethoxymethoxy)-1-(2,2,2-trifluoro-acetylamino)-ethyl]-phenoxy}-phenyl)-ethyl]-carbamic acid tert-butyl ester