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Figure 1 The two symmetry independent molecules of the title compound. Two independent molecules are denoted as A and B (or C in the case of disordered part attached to C5B), respectively. In the part C only two atoms are labelled. Displacement ellipsoids are drawn at the 50% probability level and H atoms are shown as small spheres of arbitrary radii. The dotted lines indicate intramolecular N—H⋯N hydrogen bonds. Open solid lines represent fragment of a minor component of the disordered B molecule. |