| 摘要 |
A process for the preparation, separation and purification of (6S) and (6R) diastereomers of folinic acid salts with at least dibasic amines is disclosed, which process comprises the hydrolysis of (6RS)-5,10-methenyl-5,6,7,8-tetrahydrofolic acid chloride hydrochloride with an at least dibasic amine and the subsequent separation of the diasteromeric salts.
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