(4S)-methyl-(5R)-phenyl-3-(4-propenyloxy-(2S)-methyl-butanoyl)-oxazolidin-2-one
(4R)-methyl-(5S)-phenyl-3-(4-propenyloxy-2(R)-methyl-butanoyl)-oxazolidin-2-one
(4S)-methyl-(5R)-phenyl-3-(4-propenyloxy)butanoyloxazolidin-2-one
(4R)-methyl-(5S)-phenyl-3-(4-propenyloxy)butanoyloxazolidin-2-one