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US 11,767,293 B2Granted
Crystal forms and production methods thereof
AssigneeSunovion Pharmaceuticals Inc.
InventorsJohn R. Snoonian, Harold Scott Wilkinson, Haitao Zhang
Life of this patent
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Abstract
The various aspects present inventions provide various crystalline forms of (S)-(−)-amisulpride, (R)-(+)-amisulpride, and solvates thereof and methods of making same. In various aspects, the inventions also provide methods of resolving racemic amisulpride.
Claims12
A crystalline form of (S)-(−)-amisulpride ethyl acetate solvate characterized by a powder x-ray diffraction pattern comprising peaks, in terms of 2-theta, at 6.4±0.2°, 8.3±0.2°, and 20.8±0.2°.
Dependencies are inferred from the claim text.