2-bromo-1-tert-butyldiphenylsilyloxy-4-methyl-5(RSS)-phenylsulfinyl-(2R,3R,4S)-pentan-3-ol

Benzoic acid (2S,3R,4R)-1-benzyl-2-(tert-butyl-diphenyl-silanyloxymethyl)-4-methyl-pyrrolidin-3-yl ester

(4S,5R)-3-N-methyl-5-<<(1R,3E)-1-methyl-3-penten>-1-yl>oxazolidin-2-one-4-carboxylic acid

(2S,3R,4R)-3-Benzoyloxy-2-hydroxymethyl-4-methyl-pyrrolidine-1-carboxylic acid tert-butyl ester

(2S,3R,4R)-3-Benzoyloxy-2-(tert-butyl-diphenyl-silanyloxymethyl)-4-methyl-pyrrolidine-1-carboxylic acid tert-butyl ester