Stabile, krystallinske salter av 5-metyltetrahydrofolsyre og fremgangsmate til fremstilling derav

摘要

Crystalline salts of 5-methyl-(6R,S)-, -(6S)- and -(6R)-tetrahydrofolic acid are new. Independent claims are also included for: (1) crystalline calcium salt of 5-methyl-(6S)- and -(6R)-tetrahydrofolic acid; and (2) the preparation of crystalline salts of 5-methyl-(6R,S)-, -(6S)- and 5-methyl-(6R)-tetrahydrofolic acid.