Organic compounds -- part of the class 532-570 series – Organic compounds – Carbohydrates or derivatives
Patent
1995-02-28
1995-10-31
Robinson, Douglas W.
Organic compounds -- part of the class 532-570 series
Organic compounds
Carbohydrates or derivatives
536 272, 435 87, C07H 1923, C07H 1904
Patent
active
054630355
ABSTRACT:
A process for purifying pentostatin from a crude fermentation beer comprising the steps of 1) applying the fermentation beer to a strong cation exchange resin; 2) eluting with ammonium hydroxide; 3) concentrating the eluate; 4) applying the concentrated eluate to a strongly basic anion exchange resin charged with borate ion; 5) eluting with water; 6) applying this eluate to styrene-divinylbenzene beads prewashed with ethanol; 7) eluting the beads with water; and 8) recrysllyzing the pentostatin from water and methanol to yield a product that is greater than 99.7% pure.
REFERENCES:
patent: 3923785 (1975-12-01), Ryder et al.
patent: 4713372 (1987-12-01), Schaumberg et al.
patent: 4908441 (1990-03-01), Cook et al.
PCT Search Report, PCT/US92/05946.
Analytical Biochemistry, vol. 55, Cory et al., pp. 449-456 (1973).
J. Steroid Biochem., vol. 18, No. 3, Fotsis et al., pp. 357-363 (1983).
Edmunds Colin R.
French James C.
McDonnell Peter
Showalter Howard D. H.
Crissey Todd M.
Kunz Gary L.
Robinson Douglas W.
Warner-Lambert & Company
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