(2S,3R)-2-[(R)-2-Amino-2-(4-methoxy-phenyl)-acetylamino]-3-[2-(tert-butyl-dimethyl-silanyloxy)-3-chloro-4-hydroxy-phenyl]-3-triisopropylsilanyloxy-propionic acid ethyl ester

(2S,3R)-2-[(R)-2-tert-Butoxycarbonylamino-2-(4-methoxy-phenyl)-acetylamino]-3-[2-(tert-butyl-dimethyl-silanyloxy)-3-chloro-4-hydroxy-phenyl]-3-triisopropylsilanyloxy-propionic acid ethyl ester