9,10,11,12-Tetrachloro-12b-hydroxy-12c-phenyl-1,2,3,3a,5,6,12b,12c-octahydro-8H-cyclopenta[6,7][1,4]oxazepino[5,4-a]isoindol-8-one
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The medium-sized heterocyclic title compound, C21H17Cl4NO3, crystallizes with two crystallographically independent molecules in the asymmetric unit. The cyclopentane rings adopt half-chair conformations. Symmetry-related molecules are linked via O—H⋯O hydrogen bonds to form dimers, which are arranged into one-dimensional chains along the [100] direction. C—H⋯π and π–π interactions were also observed in the crystal structure.
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