| 摘要 |
<p>A process makes possible the production of (6S) folinic acids and their salts by recrystallization of alkaline earth salts of (6R, S) folinic acids, possibly by release of these acids contained in alkaline earth folinates and/or possibly their conversion to alkali salts by at least one recrystallization in the presence of a base. The invention also concerns the (6S) folinates of calcium, magnesium, potassium and sodium and the (6S) folinic acids produced by the process described.</p> |
