2-tert-butyldiphenylsilyloxymethyl-3-[1-methyl-2(RSS)-phenylsulfinyl-(1S)-ethyl]-(2S,3R)-oxirane

(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

(4S,5R)-4-methoxycarbonyl-2-N-methyl-5-<(1''R,3''E)-1''-methylpent-3''-enyl>-2,2-dimethyl-2-oxazolidinone

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