| 摘要 |
The present invention relates to a process for preparing the stable, amorphous calcium salt of (6S)-N(5)-methyl-5,6,7,8-tetrahydrofolic acid. The present invention also relates to a process for preparing stable, crystalline (6S)-N(5)-methyl-5,6,7,8-tetrahydrofolic acid. The present invention also relates to a process for preparing an aqueous solution of the calcium salt of (6S)-N(5)-methy1-5,6,7,8-tetrahydrofolic acid.
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