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Figure 2 A view of the C—-H⋯O hydrogen bonds (dotted lines) in the crystal structure of the title compound. H atoms non-participating in hydrogen- bonding were omitted for clarity. [Symmetry codes: (i) x, y + 1, z; (ii) − x + , y + , − z + ; (iii) − x + , y + , − z + ; (iv) x − , y − , z + .] |