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

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

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

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

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