C - Chemistry – Metallurgy – 07 – C
Patent
C - Chemistry, Metallurgy
07
C
C07C 403/20 (2006.01)
Patent
CA 2520018
A new industrially applicable process for the production of 9-(Z)-retinoic acid is described which is characterized by the conversion of an alkali metal salt of 3-methyl-4-oxocrotonic acid with a C15-triphenyl-phosphonium salt. 9- (Z)-retinoic acid is a versatile compound for the treatment of numerous dermatological diseases.
L'invention concerne un nouveau procédé applicable en industrie pour la production d'acide 9-(Z)-rétinoïque, caractérisé en ce qu'il comprend la conversion d'un sel métallique alcali d'acide 3-méthyl-4-oxocrotonique avec un sel de C¿15?-triphényl-phosphonium. L'acide 9-(Z)-rétinoïque est un composé polyvalent dans le traitement de nombreuses maladies dermatologiques.
Soukup Milan
Thomessen Rolf
Borden Ladner Gervais Llp
F. Hoffmann-La Roche Ag
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