C - Chemistry – Metallurgy – 07 – K
Patent
C - Chemistry, Metallurgy
07
K
C07K 9/00 (2006.01) A61K 38/14 (2006.01) C07K 1/14 (2006.01)
Patent
CA 2133644
A process for the manufacture of vancomycin which does not require preparation of a phosphate intermediate. The process consists of passing a vancomycin broth through a suitable adsorbent, followed by passing the vancomycin through a second adsorbent, producing a purified vancomycin. Purified vancomycin is then crystallized from the solution by adding a base solution that imparts a pH of above about 9.0 to about 9.5 to the purified vancomycin. The crystallized vancomycin is separated from the solution, dissolved in solution and recrystallized by adding a base solution which imparts a pH of above about 9.0 to about 9.5 to the dissolved solution. The recrystallized vancomycin is dissolved and titrated with hydrochloric acid. Vancomycin .HCl is then precipitated from the solution using an organic solvent.
Abbott Laboratories
Hospira Inc.
Ogilvy Renault Llp/s.e.n.c.r.l.,s.r.l.
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