Crystalline salts of 5-methyl-(6S)-tetrahydrofolic acid and L-valine ethyl ester
AssigneeMerck Patent GmbH
InventorsRudolf Moser, Viola Groehn, Ruth Boehni Stamm, Fritz Blatter, Martin Szelagiewicz
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Abstract
The present invention refers to a crystalline salt comprising 5-methyl-(6S)-tetrahydrofolic acid and L-valine ethyl ester wherein the molar ratio of 5-methyl-(6S)-tetrahydrofolic acid and L-valine ethyl ester is from 1:0.3 to 1:3.0 (in mol/mol) and/or hydrates and/or solvates thereof as well as to a process of obtaining the same.
Claims17
A crystalline salt comprising 5-methyl-(6S)-tetrahydrofolic acid and L-valine ethyl ester wherein the molar ratio of 5-methyl-(6S)-tetrahydrofolic acid to L-valine ethyl ester is from 1:0.3 to 1:3.0 (in mol/mol), or a hydrate or solvate thereof.
Dependencies are inferred from the claim text.