Title:
カチオン化合物のアニオンを交換する方法
Document Type and Number:
Japanese Patent JP2005520013
Kind Code:
A
Abstract:
Process for converting sparingly soluble salts of cationic organic compounds and inorganic acids into more readily soluble salts of organic acids, which process comprises: a) preparing a sparingly water-soluble salt of the cationic organic compound with the anion of an inorganic acid, b) adding thereto, in a monohydric aliphatic alcohol, an alkali metal salt or an organic acid, c) filtering off the resulting sparingly soluble alkali metal salt of the inorganic acid, and d) optionally converting the resulting solution into a solid form.
Inventors:
Mekley, Peter
Application Number:
JP2003574730A
Publication Date:
July 07, 2005
Filing Date:
March 04, 2003
Export Citation:
Assignee:
Ciba Specialty Chemicals Holding Inc.
International Classes:
A61K8/00; A61K8/49; A61Q5/10; C09B19/00; C09B26/02; C09B44/16; C09B57/00; C09B69/06; D06P1/66; D06P3/04; (IPC1-7): C09B69/06; A61K7/13; C09B19/00; C09B26/02; C09B44/16; C09B57/00; D06P3/04
Attorney, Agent or Firm:
Hajime Tsukuni
Fumio Shinoda
Fumio Shinoda