p. 765 - 770
(2007/10/03)(2S,4S)-2-Benzyl-4-tert-butoxycarbonylamino-5-(tert-butyl-dimethyl-silanyloxy)-pentanoic acid
(3S,5S)-3-Benzyl-5-(tert-butyl-dimethyl-silanyloxymethyl)-2-oxo-pyrrolidine-1-carboxylic acid tert-butyl ester
(S)-3-Benzyl-5-(tert-butyl-dimethyl-silanyloxymethyl)-2-oxo-pyrrolidine-1-carboxylic acid tert-butyl ester
(2S,4S)-2-Benzyl-4-tert-butoxycarbonylamino-5-hydroxy-pentanoic acid methyl ester
(2S,4S)-2-Benzyl-4-tert-butoxycarbonylamino-5-hydroxy-pentanoic acid