Organic compounds -- part of the class 532-570 series – Organic compounds – Heterocyclic carbon compounds containing a hetero ring...
Reexamination Certificate
2006-09-19
2006-09-19
Saeed, Kamal A. (Department: 1626)
Organic compounds -- part of the class 532-570 series
Organic compounds
Heterocyclic carbon compounds containing a hetero ring...
Reexamination Certificate
active
07109349
ABSTRACT:
A process is described for the preparation of a precursor alcohol of Cizolirtine, (±)-2-[phenyl(1-methyl-1H-pyrazol-5-yl)methoxy]-N,N-dimethylethanamine and its enantiomers. The process involves the asymmetric addition of a metalated phenyl reagent to a pyrazolcarbaldehyde in the presence of a chiral ligand to yield chiral alcohols. The chiral alcohols are further O-alkylated to yield Cizolirtine or its enantiomers.
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Buschmann Helmut H.
Dahmen Stefan
Jover Antoni Torrens
Lormann Matthias
Hultquist Steven J.
Intellectual Property / Technology Law
Laboratorios Del Dr. Esteve, S/A
Saeed Kamal A.
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