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Figure 1 The molecular structure of the title compound showing the atom-labeling scheme. Displacement ellipsoids are drawn at the 25% probability level and H atoms are shown as small spheres of arbitrary radius. The C5–H5⋯O23, N10–H10⋯O23 and C18–H18A⋯O22 hydrogen bonds are represented by dashed lines. Cg1, Cg2 and Cg3 denote the ring centroids. |