Drug – bio-affecting and body treating compositions – Designated organic active ingredient containing – Heterocyclic carbon compounds containing a hetero ring...
Reexamination Certificate
2006-07-04
2006-07-04
Tsang, Cecilia J. (Department: 1625)
Drug, bio-affecting and body treating compositions
Designated organic active ingredient containing
Heterocyclic carbon compounds containing a hetero ring...
C514S300000, C544S061000, C544S228000, C546S122000, C546S123000
Reexamination Certificate
active
07071187
ABSTRACT:
The present invention provides a novel naphthyridine derivative that is effective for relieving pain, less toxic, and also is effective for treating diabetic neuropathy, the derivative being represented by the general formula (1):wherein R1, R2, R3and R4are as described in the description.
REFERENCES:
patent: 6245779 (2001-06-01), Shibutani et al.
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patent: 07/010875 (1995-01-01), None
patent: 07/002779 (1995-02-01), None
patent: 07/304775 (1995-11-01), None
patent: 2003081946 (2003-03-01), None
patent: WO 99/02527 (1999-01-01), None
Covington Raymond
Otsuka Pharmaceutical Factory Inc.
Sughrue & Mion, PLLC
Tsang Cecilia J.
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