Method for the purification of lansoprazole

Details Method for the purification of lansoprazole Method for the purification of lansoprazole

2005-06-21

2005-06-21

Morris, Patricia L (Department: 1625)

Organic compounds -- part of the class 532-570 series

Organic compounds

Heterocyclic carbon compounds containing a hetero ring...

Reexamination Certificate

active

06909004

ABSTRACT:
The present invention provides a method for preparing a substantially pure lansoprazole containing less than about 0.2% (wt/wt) impurities including sulfone/sulfide derivatives. The present invention also provides a process for recrystallizing lansoprazole to obtain a lansoprazole containing less than about 0.1% (wt/wt) water.

REFERENCES:
patent: 4628098 (1986-12-01), Nohara et al.
patent: 4689333 (1987-08-01), Nohara et al.
patent: 5026560 (1991-06-01), Makino et al.
patent: 5045321 (1991-09-01), Makino et al.
patent: 5093132 (1992-03-01), Makino et al.
patent: 5433959 (1995-07-01), Makino et al.
patent: 5578732 (1996-11-01), Kato et al.
patent: 6002011 (1999-12-01), Kato et al.
patent: 6166213 (2000-12-01), Anousis et al.
patent: 6180652 (2001-01-01), Tsujii et al.
patent: 6268502 (2001-07-01), Milac et al.
patent: 6313303 (2001-11-01), Tagami et al.
patent: 2 063 705 (1995-01-01), None
patent: 2 105 953 (1997-10-01), None
patent: WO 99/47514 (1999-09-01), None
patent: WO 01/21617 (2001-03-01), None
patent: WO 01/68594 (2001-09-01), None
The United States Pharmacopeial Convention, Inc., Pharmacopeial Forum vol. 26 No. 5., pp. 1229-1232.; 2000.
Drug Development and Industrial Pharmacy Stabilization of a New Antiulcer Drug (Lansoprazole) in the Solid Dosage Forms, pp. 1437-1447, 1992.

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