Chemistry: natural resins or derivatives; peptides or proteins; – Peptides of 3 to 100 amino acid residues – Separation or purification
Patent
1992-04-27
1993-11-02
Chan, Y. Christina
Chemistry: natural resins or derivatives; peptides or proteins;
Peptides of 3 to 100 amino acid residues
Separation or purification
530317, 530322, C07K 114, C07K 900
Patent
active
052584950
ABSTRACT:
A process for the manufacture of vancomycin.HCl which does not require preparation of a phosphate intermediate. The process consists of loading a vancomycin onto a suitable adsorbent and eluting the vancomycin solution therefrom with an ammonium solvent followed by loading the vancomycin solution onto a suitable adsorbent and eluting the purified, vancomycin solution therefrom with a solvent of alcohol and acid. The purified vancomycin is then crystallized from the solution by combining the solution with a sufficient amount of NH.sub.4 Cl to provide a pH of about 2.0 to about 3.5. The crystals are then dissolved in solution. The dissolved solution is combined with acid and the vancomycin recrystallizes from the solution.
REFERENCES:
patent: 3067099 (1962-12-01), McCormick et al.
patent: 4440753 (1984-04-01), McCormick et al.
patent: 4667024 (1987-05-01), Sitrin et al.
patent: 4845194 (1989-07-01), Glass et al.
Abbott Laboratories
Chan Y. Christina
Danckers Andreas M.
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