(S)-3-(4-Benzyloxy-phenyl)-2-{(S)-2-(tert-butoxycarbonyl-methyl-amino)-3-[4-(4-methoxy-benzyloxy)-phenyl]-propylamino}-propionic acid methyl ester

(S)-3-(4-hydroxyphenyl)-2-[(ethoxycarbonyl)amino]-1-propanoic acid methyl ester

(S)-3-[4-(4-Methoxy-benzyloxy)-phenyl]-2-methylamino-propan-1-ol

{(S)-1-Formyl-2-[4-(4-methoxy-benzyloxy)-phenyl]-ethyl}-methyl-carbamic acid tert-butyl ester

(S)-2-Ethoxycarbonylamino-3-[4-(4-methoxy-benzyloxy)-phenyl]-propionic acid methyl ester