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| Figure 1 The molecular stucture of (I), with displacement ellipsoids drawn at the 50% probability level. The intramolecular N—H⋯O hydrogen bond is shown as dashed lines. |
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| Figure 1 The molecular stucture of (I), with displacement ellipsoids drawn at the 50% probability level. The intramolecular N—H⋯O hydrogen bond is shown as dashed lines. |