Ethyl (3S)-3-(1-benzylethylphosphonomethylcyclopentane-1-carbonylamino)-2,3,4,5-tetrahydro-2-oxo-1H-1-benzazepine-1-acetate 在
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Ethyl (3S)-3-(1-ethylphosphonomethylcyclopentane-1-carbonylamino)-2,3,4,5-tetrahydro-2-oxo-1H-1-benzazepine-1-acetate