发明授权
- 专利标题: Process for preparing folic acid
- 专利标题(中): 制备叶酸的方法
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申请号: US09497151申请日: 2000-02-03
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公开(公告)号: US06348593B1公开(公告)日: 2002-02-19
- 发明人: Jörg Botzem , Hagen Jaedicke , Michael John , Joachim Paust
- 申请人: Jörg Botzem , Hagen Jaedicke , Michael John , Joachim Paust
- 优先权: DE19904812 19990225
- 主分类号: C07D47500
- IPC分类号: C07D47500
摘要:
A process for preparing folic acid, which comprises reacting a tetraalkoxypropanol of the general formula I, in which the substituents R are C1-C4-alkyl, with triaminopyrimidone of the formula II and p-aminobenzoyl-L-glutamic acid of the formula III
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