Process for manufacturing bisphosphonic acids

Details Process for manufacturing bisphosphonic acids Process for manufacturing bisphosphonic acids

C - Chemistry, Metallurgy

07

F

C07F 9/6506 (2006.01)

Patent

CA 2646418

A manufacturing process for the preparation of bisphosphonic acids and in particular zoledronic acid is provided wherein diglyme, monoglyme, or a mixture thereof, is utilized to produce a homogenous, water soluble, solid reaction mass that upon cooling, dissolving in water and stripping results in a high purity product and comparatively good yield. wherein Ri is selected from the group consistin of

L'invention concerne un procédé de fabrication destiné à la préparation d'acides bisphosphoniques et notamment d'acide zolédronique, un diglyme, un monoglyme ou un de leurs mélanges étant utilisé pour obtenir une masse réactionnelle solide, homogène et hydrosoluble qui, après refroidissement, dissolution dans l'eau et revaporisation, résulte en un produit de haute pureté, avec un rendement comparativement bon.

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