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US 6,204,368 B1Granted
Process for the purification of roxithromycin
AssigneeHovione Inter Ltd.
InventorsWilliam Heggie, Alexandre Carvalho, Luis Sobral
Life of this patent
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Abstract
A process for the purification of roxithromycin, an antibiotic for therapeutic purposes, in which the purification is carried out by the dissolution or suspension of the product in methanol followed by cooling. Purification may also be obtained by addition of a non-solvent and/or by concentration of the mixture, thus obtaining a purified product.
Claims6
A process for the purification of roxithromycin, wherein the product is crystallised or suspended in methanol and the purified roxithromycin is recovered from the mixture.
Dependencies are inferred from the claim text.