(+)-(1S,5R,6R)-6-[(S)-1-Hy­droxy-2-(meth­oxy­meth­yloxy)eth­yl]-1-methyl-3-trichloro­methyl-2-aza-4,7-dioxa­bicyclo­[3.3.0]oct-2-en-8-one

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.