Drug – bio-affecting and body treating compositions – Designated organic active ingredient containing – Having -c- – wherein x is chalcogen – bonded directly to...
Reexamination Certificate
2007-08-08
2009-12-15
Chu, Yong (Department: 1626)
Drug, bio-affecting and body treating compositions
Designated organic active ingredient containing
Having -c-, wherein x is chalcogen, bonded directly to...
C514S406000, C548S143000, C548S364100
Reexamination Certificate
active
07632852
ABSTRACT:
The invention relates to compounds having formula (I):Wherein R1, R2, R3 and R4 are as defined herein. The invention also relates to a method of preparing said compounds and to the application thereof in therapeutics.
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Vippagunta et al., Advanced Drug Delivery Reviews, p. 1.
Vippagunta et al., Advanced Drug Delivery Reviews, vol. 48, p. 3-26, (2001).
Maslivets, A. N., et. al., Five-Membered 2,3-Dioxoheterocycles. XI. Synthesis and Chemical Transformations of the Beta-Aroylhydrazides of Aroylpyruvic acids, J. Org. Chem. USSR. vol. 25, No. 5, (1989) pp. 935-940.
Barth Francis
Broeck Didier Van
Congy Christian
Gueule Patrick
Rinaldi-Carmona Murielle
Chu Yong
Gupta Balaram
Sanofi-aventis
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