FIELD: pharmaceuticals.
SUBSTANCE: invention relates to a method for producing 6-methyl-2-ethylpyridin-3-ol salts of (2S)-2-acetaminopentanedioic acid, which involves carrying out a salt formation reaction between N-acetyl-L-glutamic acid and 2-ethyl-6-methyl-3-oxypyridine in the presence of a solvent and subsequent crystallization, where the solvent is an azeotropic mixture of isopropyl alcohol and water, and the crystallization is carried out in acetone.
EFFECT: technical result is achieved by the fact that a new method of obtaining 6-methyl-2-ethylpyridin-3-ol salt of (2S)-2-acetaminopentanedioic acid has been developed, which allows to increase the yield of the product, which, in turn, can be used as the active substance of drugs.
6 cl, 2 ex
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