Title:
【発明の名称】ホリニン酸の分離方法
Document Type and Number:
Japanese Patent JPH089618
Kind Code:
B2
Abstract:
The invention relates to a process for preparing (6S)-folinic acid and its salts by recrystallization of alkaline-earth salts of (6R,S)-folinic acid and, where necessary, liberation of the acid from the alkaline-earth folinates and/or, where necessary, conversion into the alkali salts by at least one recrystallization in the presence of a base. The invention also relates to calcium-, magnesium-, potassium- and sodium-(6S)-folinates and to (6S)-folinic acid prepared in accordance with the invention.
Inventors:
Murrel hans rudolf
Ullman Martin
Conti Josef
Muelder Gunther
Ullman Martin
Conti Josef
Muelder Gunther
Application Number:
JP50380988A
Publication Date:
January 31, 1996
Filing Date:
April 22, 1988
Export Citation:
Assignee:
Eproba Akchengezel Shaft
International Classes:
C07D475/04; (IPC1-7): C07D475/04
Attorney, Agent or Firm:
Mitsuyoshi Ezaki (1 person outside)