C - Chemistry – Metallurgy – 07 – J
Patent
C - Chemistry, Metallurgy
07
J
C07J 71/00 (2006.01)
Patent
CA 2246520
Process for preparing the compound 11.beta.-21-dihydroxy- 2'-methyl-5'.beta.H-pregna-1,4-dieno[17,16-d-]-oxazoline-3,20-dione of formula (I), which comprises adsorbing said compound, contained into an aqueous solution resulting from fermentation broths or process streams, on an adsorbent polymeric resin having a styrenic or acrylic matrix and subsequently desorbing the said compound by eluting the resin with a suitable mixture of water with a water-miscible organic solvent.
L'invention concerne un procédé de préparation du composé 11 beta -21-dihydroxy-2'-méthyl-5' beta H-pregna-1,4-diéno[17,17-d-]-oxazoline-3,20-dione de la formule (I). Ce procédé consiste à adsorber ce composé, contenu dans une solution aqueuse résultant de bouillons de fermentation ou de courants de traitement, sur une résine polymère adsorbante possédant une matrice styrène ou acrylique et à procéder à la désorption séquentielle du composé en éluant la résine avec un mélange approprié d'eau et d'un solvant organique miscible dans l'eau.
Gruppo Lepetit S.p.a.
Sanofi-Aventis S.p.a.
Smart & Biggar
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