Organic compounds -- part of the class 532-570 series – Organic compounds – Heterocyclic carbon compounds containing a hetero ring...
Reexamination Certificate
2006-04-04
2006-04-04
Coleman, Brenda (Department: 1624)
Organic compounds -- part of the class 532-570 series
Organic compounds
Heterocyclic carbon compounds containing a hetero ring...
Reexamination Certificate
active
07022860
ABSTRACT:
A process for preparing a compound represented by formula (IIa′)wherein Q represents group (i) as defined in the specification and R2to R5, R31, R32, and R52are as defined in the specification, by (1) reacting a compound represented by formula (V)wherein R2to R5and R52are as defined in the specification. with a compound represented by R31R32C═O wherein R31and R32are as defined in the specification; (2) reacting the compound prepared in (1) with a compound represented by R71—C(═O)—R72wherein R71and R72each independently represent a chlorine atom, 4-nitrophenyl, or 1-imidazolyl; and (3) reacting the compound prepared in (2) with a compound represented by R33OH wherein R33is as defined in the specification.
REFERENCES:
patent: 5686442 (1997-11-01), Ohtsuka et al.
patent: 97/00258 (1997-01-01), None
Obrect, D., et al, “A Novel and Efficient Approach for the Combinatorial Synthesis of Structurally Diverse Pyrimidines on Solid Support”, Helvetica Chimica ACTA, vol. 80 (1997), pp. 65-72.
Fushihara Kenichi
Ishikura Toyoaki
Kawaguchi Mami
Kitagawa Hideo
Miyamoto Sachiko
Coleman Brenda
Meiji Seika Kaisha Ltd.
Wenderoth , Lind & Ponack, L.L.P.
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