发明授权
- 专利标题: Synthesis of leucovorin
- 专利标题(中): 甲酰四氢叶酸的合成
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申请号: US218554申请日: 1980-12-22
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公开(公告)号: US4500711A公开(公告)日: 1985-02-19
- 发明人: James C. Wisowaty , Roy A. Swaringen , David A. Yeowell
- 申请人: James C. Wisowaty , Roy A. Swaringen , David A. Yeowell
- 申请人地址: NC Research Triangle Park
- 专利权人: Burroughs Wellcome Co.
- 当前专利权人: Burroughs Wellcome Co.
- 当前专利权人地址: NC Research Triangle Park
- 主分类号: C07D475/04
- IPC分类号: C07D475/04
摘要:
In the synthesis of calcium leucovorin (calcium 5-formyl-5,6,7,8-tetrahydrofolate), the use of an amine base in the conversion of anhydroleucovorin (5,10-methenyl-5,6,7,8-tetrahydrofolic acid) to leucovorin unexpectedly results in a pure (USP) product directly from the reaction mixture.
公开/授权文献
- US4885848A Fluid bed dryer and a bed plate therefor 公开/授权日:1989-12-12
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