发明名称 |
PROCESS FOR THE DIASTEREOISOMERIC RESOLUTION OF 5-METHYLTETRAHYDROFOLIC ACID |
摘要 |
<p>The invention relates to a process for the diastereoisomeric resolution of 5-methyltetrahydrofolic acid; it discloses also a crystalline amine salt of 5-methyltetrahydrofolic acid and is further directed to a process for the transformation of the single diastereoisomers of the 5-methyltetrahydrofolic amine salts obtained by the process of the invention into the corresponding free acid or into an alkaline earth metal salt. The invention provides a simple, economically advantageous and efficient process and allows to obtain stable and pure (6R) and ( 6S) -diastereoisomers of 5-methyltetrahydrofolic acid in a good yield and diastereoisomeric purity.</p> |
申请公布号 |
EP2254890(B1) |
申请公布日期 |
2015.04.08 |
申请号 |
EP20080709117 |
申请日期 |
2008.02.20 |
申请人 |
GNOSIS S.P.A. |
发明人 |
VALOTI, ERMANNO;BIANCHI, DAVIDE;VALETTI, MARCO |
分类号 |
C07D475/04;A61K31/519 |
主分类号 |
C07D475/04 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|