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| Figure 1 . The molecular structure of the title compound. Displacement ellipsoids are drawn at the 50% probability level. The intramolecular N—H⋯O hydrogen bonds are shown as dashed lines. |
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| Figure 1 . The molecular structure of the title compound. Displacement ellipsoids are drawn at the 50% probability level. The intramolecular N—H⋯O hydrogen bonds are shown as dashed lines. |