NOVEL SOLID FORMS OF EPALRESTAT

摘要

The invention relates to novel crystalline salts of 5-[(1Z,2E)-2-methyl-3-phenylpropenylidene]-4-oxo-2-thioxo-3-thiazolidineacetic acid and a novel betaine cocrystal of 5-[(1Z,2E)-2-methyl-3-phenylpropenylidene]-4-oxo-2-thioxo-3-thiazolidineacetic acid. The preparation and characterization of the novel crystalline salts and cocrystal according to various embodiments of the invention is described. The invention also relates to pharmaceutical compositions containing the novel crystalline salts and cocrystal and the therapeutic use of the novel crystalline salts and cocrystal to treat and/or prevent various conditions, including treating and/or preventing diabetic complications, inhibiting aldose reductase, and affording cardioprotection in patients who may be non-diabetic.

主权项

1. A crystalline potassium anhydrate salt of 5-[(1Z,2E)-2-methyl-3-phenylpropenylidene]-4-oxo-2-thioxo-3-thiazolidineacetic acid.