C - Chemistry – Metallurgy – 07 – J
Patent
C - Chemistry, Metallurgy
07
J
260/62
C07J 9/00 (2006.01)
Patent
CA 1177063
PRECIS DE LA DIVULGATION: L'invention a pour objet un procédé de préparation de l'acide ursodésoxycholique qui consiste essentiellement à traiter l'acide 3.alpha., 7.beta., 12a-trihydroxycholanique par un agent d'acylation, à oxyder le produit 12.alpha.-hydroxy obtenu, à le saponifier et enfin à le réduire. Ce procédé permet d'accéder à l'acide ursodésoxycholique en quatre stades à partir de l'acide 3.alpha., 7.beta., 12.alpha.-trihydroxycholanique.
408952
Bulidon Jacques
Demuynck Robert
Pavan Charles
Robic Robic & Associes/associates
Roussel-Uclaf
LandOfFree
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