Method for the production of folic acid
    8.
    发明授权
    Method for the production of folic acid 失效
    生产叶酸的方法

    公开(公告)号:US5410056A

    公开(公告)日:1995-04-25

    申请号:US178195

    申请日:1994-01-06

    Inventor: Christof Wehrli

    CPC classification number: C07D475/04 C07C251/12

    Abstract: The present invention is directed to a novel process for the production of folic acid in high yield utilizing a novel diimine as an intermediate. This diimine is formed by reacting 2-substituted malondialdehyde with p-aminobenzoyl-L-glutamic acid. This diimine may be converted into folic acid by reacting said diimine with triaminopyrimidinone in the presence of sulphite.

    Abstract translation: 本发明涉及以新产物二亚胺为中间体以高产率生产叶酸的新方法。 该二亚胺通过2-取代丙二醛与对氨基苯甲酰基-L-谷氨酸反应形成。 在亚硫酸盐存在下,所述二亚氨基与三氨基嘧啶酮反应可将该二亚胺转化为叶酸。

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