Toremifene crystallization method

C - Chemistry – Metallurgy – 07 – C

Patent

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

C07C 213/10 (2006.01) A61K 31/135 (2006.01)

Patent

CA 2525835

The invention relates to a method for isolating toremifene from a mixture of toremifene and its corresponding E isomer. The method comprises contacting the isomer mixture with a first solvent comprising methanol, allowing toremifene to crystallize in said first solvent, allowing the crystallized product of the previous step to crystallize from a second solvent comprising acetone, methyl ethyl ketone or ethyl acetate, and optionally converting toremifene crystallized from the previous step to a pharmaceutically acceptable salt thereof.

L'invention concerne une méthode permettant d'isoler le torémifène d'un mélange de torémifène et de son isomère E correspondant. Cette méthode consiste à mettre le mélange isomère en contact avec un premier solvant comprenant du méthanol. Ainsi le torémifène peut cristalliser dans le premier solvant et le produit cristallisé de l'étape précédente peut cristalliser à partir d'un second solvant comprenant de l'acétone, du méthyléthylcétone ou de l'acétate d'éthyle. Cette méthode consiste éventuellement à convertir le torémifène cristallisé de l'étape précédente en un sel pharmaceutiquement acceptable dudit torémifène.

LandOfFree

Say what you really think

Search LandOfFree.com for Canadian inventors and patents. Rate them and share your experience with other people.

Rating

Toremifene crystallization method does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Toremifene crystallization method, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Toremifene crystallization method will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFCA-PAI-O-1415796

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.