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(2007/10/03)(S)-3-[(9H-fluoren-9-ylmethoxy)carbonyl]-5-oxo-4-oxazolidineacetic acid
N-α-9-fluorenylmethoxycarbonyl-aspartic acid
9H-9-fluorenylmethyl (4S)-4-(2-azido-2-oxoethyl)-5-oxo-1,3-oxazolone-3-carboxylate
(S)-(3-fluoren-9-ylmethoxycarbonyl)-4-[(allyloxycarbonylamino)methyl]-5-oxazolidinone