(4S,5R)-N-[(1R,2S)-2-(t-butyloxycarbonylamino)cyclobutanecarbonyl]-4-methyl-5-phenyl-1,3-oxazolidin-2-one
(4S,5R)-N-[(1S,2R)-2-(t-butyloxycarbonylamino)cyclobutanecarbonyl]-4-methyl-5-phenyl-1,3-oxazolidin-2-one
(-)-(1S,2S)-2-[(tert-butyloxycarbonyl)amino]cyclobutanecarboxylic acid
(+)-(1R,2R)-2-[(tert-butyloxycarbonyl)amino]cyclobutanecarboxylic acid
(+)-(1S,2R)-2-[(tert-butyloxycarbonyl)amino]cyclobutanecarboxylic acid