Organic compounds -- part of the class 532-570 series – Organic compounds – Heterocyclic carbon compounds containing a hetero ring...
Reexamination Certificate
2004-08-18
2009-12-15
Davis, Zinna N (Department: 1625)
Organic compounds -- part of the class 532-570 series
Organic compounds
Heterocyclic carbon compounds containing a hetero ring...
C546S256000, C546S258000
Reexamination Certificate
active
07632950
ABSTRACT:
The present invention provides pyridine derivatives useful as intermediates of drugs and agricultural chemicals, electrophotographic receptors, dyes and so on. More specifically, the invention relates to novel pyridyltetrahydropyridines and novel pyridylpiperidines, and further to a method of manufacturing pyridine derivatives through reaction between bipyridine derivatives and benzyl halide or benzyloxycarbonyl halide and subsequent reduction of the resultant reaction products with the aid of palladium catalysts, platinum catalysts, ruthenium catalysts or rhodium catalysts.
REFERENCES:
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patent: 2002-518386 (2002-06-01), None
patent: WO 99/65896 (1999-12-01), None
patent: WO 01/62742 (2001-08-01), None
patent: WO 03/099266 (2003-12-01), None
Vincenzo Carelli, et al., “Alcuni derivari γ-piridin-e γ-chinolin-piperidinici”, Annali di Chimica, 1959, pp. 709-719, vol. 49.
Floris P.J.T. Ruties, et al., “Selective Azetidine and Tetrahydropyridine Formation via Pd-Catalyzed Cyclizations of Allene-Substituted Amines and Amino Acids”, Organic Letters, 1999, pp. 717-720, vol. 1, No. 5.
International Search Report dated Dec. 7, 2004.
Arai Hidehiro
Kuwabara Hirokazu
Saitoh Hiromitsu
Sonoda Takayuki
Davis Zinna N
Fujifilm Finechemicals Co., Ltd
Sughrue & Mion, PLLC
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