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Figure 2 A view of N—H⋯O hydrogen bond interactions (dotted lines) in the crystal structure of the title compound. H atoms non–participating in hydrogen–bonding and disordered part B and D atoms were omitted for clarity. [Symmetry code: (i) − x, − y + 1, − z + 1; (ii) − x + 1, − y + 1, − z + 1.] |