1-<(S)-3-benzyloxycarbonyl-5-oxo-4-oxazolidinone>-3-diazo-2-propanone
(4S)-4-(Chloroformyl)methyl-3-[(phenylmethoxy)carbonyl]oxazolidin-5-one
(4S)-3-benzyloxycarbonyl-4-carboxymethyl-1,3-oxazolidin-5-one
thiocarboxamide
1-<(S)-3-benzyloxycarbonyl-5-oxo-4-oxazolidinone>-3-chloro-2-propanone