Process for preparing (S)-pantoprazole

Organic compounds -- part of the class 532-570 series – Organic compounds – Heterocyclic carbon compounds containing a hetero ring...

Reexamination Certificate

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Reexamination Certificate

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10536891

ABSTRACT:
The invention relates to a novel process for preparing (S)-pantoprazole using a chiral zirconium complex or a chiral hafnium complex.

REFERENCES:
patent: 5948789 (1999-09-01), Larsson et al.
patent: 0 005 129 (1979-10-01), None
patent: 0 166 287 (1986-01-01), None
patent: 0 174 726 (1986-03-01), None
patent: 0 268 956 (1988-06-01), None
patent: 91/12221 (1991-08-01), None
patent: 92/08716 (1992-05-01), None
patent: 94/24867 (1994-11-01), None
patent: 94/25028 (1994-11-01), None
patent: 94/27988 (1994-12-01), None
patent: 96/02535 (1996-02-01), None
patent: 96/17076 (1996-06-01), None
patent: 96/17077 (1996-06-01), None
patent: 97/02261 (1997-01-01), None
patent: 99/47514 (1999-09-01), None
patent: 2004/052882 (2004-06-01), None
Bonchio, M., et al., “The First Chiral Zirconium (IV) Catalyst For Highly Stereoselective Sulfoxidation”,J. Org. Chem. vol. 64, No. 4, pp. 1326-1330, (1999).
Ikegami, S., et al., “Asymmetric Epoxidation Of Homoallylic Alcohols Using Zirconium Tetrapropoxide, Dicyclohexyltartramide, And t-Butyl Hydroperoxide System”,Chemistry Letters, pp. 83-84, (1987).
Nugent, W.A., “Chiral Lewis Acid Catalysis. Enantioselective Addition Of Azide To Meso Epoxides”,J. Am. Chem. Soc., vol. 114, No. 7, pp. 2768-2769, (1992).

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