论文信息 - (2S,3R)-2-[(4-Ethyl-2,3-dioxopiperazin-1-yl)carbonylamino]-3-hydroxybutyric acid monohydrate

(2S,3R)-2-[(4-Ethyl-2,3-dioxopiperazin-1-yl)carbonylamino]-3-hydroxybutyric acid monohydrate

In the title compound, C11H17N3O6·H2O, an important building block of the medicine cefbuperazone sodium, the piperazine ring adopts a screw-boat conformation. Intermolecular O—H⋯O and intramolecular N—H⋯O hydrogen bonds are observed. The water molecule participates as both donor and acceptor in this framework.

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