A method for producing betulinic acid

Details A method for producing betulinic acid A method for producing betulinic acid

C - Chemistry, Metallurgy

07

J

C07J 63/00 (2006.01)

Patent

CA 2705902

A method for producing betulinic acid using betulin as the starting material comprises the following steps: (1) Preparation of crude betulinic aldehyde through oxidation of betulin; (2) Preparation of crude betulinic acid through oxidation of crude betulinic aldehyde; and (3) Preparation of betulinic acid through recrystallization of crude betulinic acid. The present invention changes the disadvantages existing in the previous synthetic methods of betulinic acid that betulinic acid isomer occurs in the product or the routing is complex. The method of present invention has a low producing cost.

Procédé de production de l'acide bétulinique à partir de la bétuline comprenant les étapes suivantes: (1) obtention du bétulinaldéhyde brut par oxydation de la bétuline; (2) obtention de l'acide bétulinique brut par oxydation du bétulinaldéhyde brut; (3) obtention de l'acide bétulinique par recristallinisation de l'acide bétulinique brut. La présente invention permet de remédier ainsi aux défauts de l'art antérieur, en particulier dans le cas où le produit fini contient l'énantiomère de l'acide bétulinique naturel ou en cas de complexité technique. La production en est ainsi simplifiée et plus économique.

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