Methyl Ester of the Bioactive Metabolite of Thromboxane A2 Receptor Antagonist ON-579

The title compound, methyl (RS)-4-[2-(4-chlorophenylsulfonylamino)ethylsulfinyl]-2,6-difluorophenoxyacetate, C₁₇H₁₆ClF₂NO₆S₂, crystallizes in space group P2₁/c. In the crystal, the enantiomeric molecules, related by a center of symmetry, form pairs joined by N—H...O hydrogen bonds.

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