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Figure 1 Molecular structure of the title compound, showing atom labeling and 50% probability displacement ellipsoids. Atoms C18 and C19 are disordered over two conformations which are constrained to have similar metrical parameters with occupanicies of 0.644 (3) [C18B & C19B)] and 0.356 (3) [C18A & C19A], respectively. Dashed lines indicate intramolecular O1—H10⋯N1 hydrogen bonds. |