In the title compound, C11H14Cl3NO6, the fused five-membered oxazoline and tetrahydrofuran rings are essentially planar with maximum deviations of 0.069 (1) and 0.031 (1) Å, respectively, and make a dihedral angle of 64.23 (11)° with each other. In the crystal, molecules are linked by O—H⋯O and C—H⋯O hydrogen bonds, forming chains along the b-axis direction. Further C—H⋯O hydrogen bonds are observed between the chains.
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