US2014171647A1PendingUtilityA1
Crystals of laquinimod sodium, and process for the manufacture thereof
Est. expiryOct 19, 2025(expired)· nominal 20-yr term from priority
A61P 37/02A61P 43/00A61P 37/06A61P 29/00A61P 25/00C07D 215/54C07D 215/56A61K 31/4704C07B 2200/13C07D 215/22
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Abstract
Disclosed is a process for the preparation of laquinimod sodium which removes the impurities after the salt formation step, thus resulting in crystals of higher purity as well as crystals having improved crystalline characteristics.
Claims
exact text as granted — not AI-modified1 . A mixture of crystalline laquinimod sodium particles, wherein 10% or more of the total amount by volume of the laquinimod sodium particles have a size of greater than 40 microns.
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