(4R,5R)-4-hydroxymethyl-3-methyl-5-[(E,1R)-1-methyl-3-pentenyl]-oxazolidin-2-one

3-[1-methyl-2(RSS)-phenylsulfinyl-(1S)-ethyl]-(2S,3R)-oxiran-2-ylmethanol

5-[2-hydroxy-1-methyl-(1R)-ethyl]-3-methyl-2-oxo-(4R,5R)-1,3-oxazolan-4-ylmethylacetate

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

4-hydroxymethyl-3-methyl-5-[1-methyl-2(RSS)-phenylsulfinyl-(1S)-ethyl]-(4R,5R)-1,3-oxazolan-2-one