Organic compounds -- part of the class 532-570 series – Organic compounds – Heterocyclic carbon compounds containing a hetero ring...
Patent
1999-05-07
2000-08-22
Mckane, Joseph
Organic compounds -- part of the class 532-570 series
Organic compounds
Heterocyclic carbon compounds containing a hetero ring...
548546, 548547, 548550, C07D20712, C07D20714, C07D20716
Patent
active
061074926
ABSTRACT:
Levetiracetam is prepared by optical resolution of etiracetam by means of preparative high performance liquid chromatography or continuous simulated moving bed chromatographic system using silica gel supporting amylose tris(3,5-dimethylphenylcarbamate) as a packing material.
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Yashima et al., "3,5-Dimethylphenylcarbamates of cellulose and amylose regioselectively bonded to silica gel as chiral stationary phases for high-performance liquid chromatography," J. of Chromatography A, 877, pp. 11-19, 1994.
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Canvat Jean-Pierre
Cavoy Emile
Deleers Michel
Futagawa Tooru
Hamende Michel
Daicel Chemical Industries Ltd.
McKane Joseph
Oswecki James C.
UCB S.A.
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