(S)-3-[2-(2,5-Dimethyl-pyrrol-1-yl)-6-methoxy-phenyl]-2-((R)-2-hydroxy-1-phenyl-ethylamino)-propionic acid methyl ester

(S)-2-[2-((S)-2-tert-Butoxycarbonylamino-3-hydroxy-propyl)-3-methoxy-phenylamino]-3-methyl-butyric acid

(S)-3-[2-(2,5-Dimethyl-pyrrol-1-yl)-6-methoxy-phenyl]-2-((R)-2-hydroxy-1-phenyl-ethylamino)-propionitrile

(S)-2-tert-Butoxycarbonylamino-3-[2-(2,5-dimethyl-pyrrol-1-yl)-6-methoxy-phenyl]-propionic acid methyl ester

[(S)-2-(2-Amino-6-methoxy-phenyl)-1-hydroxymethyl-ethyl]-carbamic acid tert-butyl ester