Organic compounds -- part of the class 532-570 series – Organic compounds – Heterocyclic carbon compounds containing a hetero ring...
Reexamination Certificate
2006-07-18
2006-07-18
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
07078533
ABSTRACT:
A method for the resolution of etodolic acid by crystallization of its salt with optically active 1-phenylethylamine and subsequent recovery of the (R,S) etodolic acid from the mother liquors of crystallization by racemization and crystallization is described.
REFERENCES:
patent: 4501899 (1985-02-01), Abraham et al.
patent: 4520203 (1985-05-01), Abraham et al.
patent: 4604469 (1986-08-01), Demerson et al.
patent: 5578734 (1996-11-01), Vecchi
patent: 6964979 (2005-11-01), Gopalsamy et al.
patent: WO 95/27713 (1995-10-01), None
patent: WO 01/06990 (2001-02-01), None
Demerson et al., J Med Chem 1983, 26, 1778-80.
Lee et al., J Pharm Sci 1988, 77, 81-86.
Woods et al., Org Process Res Devel 2000, 4, 418-26.
Costa et al., Synthetic Comm 1996, 26, 3671-76.
Brenna et al., Tetrahedron 1997, 53, 17769-80.
De Ferra Lorenzo
Ullucci Elio
Chemi Spa
Darby & Darby
Saeed Kamal A.
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