C - Chemistry – Metallurgy – 07 – D
Patent
C - Chemistry, Metallurgy
07
D
C07D 493/04 (2006.01) A61K 31/36 (2006.01) B01D 9/02 (2006.01)
Patent
CA 2628304
A method of purifying episesamin capable of obtaining an episesamin-rich composition having a high content of episesamin by bringing a mixture of sesamins containing sesamin, episesamin and the like into contact with an aqueous medium thereby to obtain a slurry mixture and then separating a solid matter from the resulting mixture or dissolving the mixture of sesamins by heating in an appropriate aqueous medium and carrying out recrystallization by gradually cooling the resulting solution is disclosed. According to the invention, episesamin can be simply and efficiently purified from a mixture of sesamins containing mainly sesamin and episesamin.
L~invention concerne un procédé de purification d~épisésamine permettant d~obtenir une composition riche en épisésamine, ledit procédé consistant à mettre en contact un mélange de sésamines contenant de la sésamine, de l~épisésamine et des composés analogues avec un milieu aqueux afin d~obtenir un mélange pâteux, puis à séparer une matière solide dudit mélange résultant ou à dissoudre le mélange de sésamines en le chauffant dans un milieu aqueux approprié et à effectuer une recristallisation en refroidissant graduellement la solution résultante. Le procédé selon l~invention permet de purifier de l~épisésamine de manière simple et efficace à partir d~un mélange de sésamines contenant principalement de la sésamine et de l~épisésamine.
Aoshima Yukihiro
Nakai Masaaki
Norton Rose Or S.e.n.c.r.l. S.r.l./llp
Suntory Holdings Limited
Suntory Limited
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