• 4668-43-3
    (3S)-4-ethoxy-4-oxo-3-(phenylmethoxycarbonylamino)butanoate
  • 4515-23-5
    Z-天冬氨酸酸酐
  • 849411-39-8
    ethyl (S)-2-(benzyloxycarbonylamino)-4-hydroxybutanoate
  • 849411-41-2
    ethyl (S)-4-azido-2-benzyloxycarbonylaminobutanoate
  • 849411-40-1
    ethyl (S)-2-benzyloxycarbonylamino-4-methanesulfonyloxybutanoate
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