Substituted 4-amino[1,2,4]triazolo[4,3-a] quinoxalines

Drug – bio-affecting and body treating compositions – Designated organic active ingredient containing – Heterocyclic carbon compounds containing a hetero ring...

Reexamination Certificate

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C544S346000

Reexamination Certificate

active

10805885

ABSTRACT:
The present invention provides compounds of formula (I)the prodrugs thereof, and the pharmaceutically acceptable salts of the compounds and prodrugs, wherein Ra, Rb, R1, and R2are as defined herein; pharmaceutical compositions thereof; and uses thereof.

REFERENCES:
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patent: 1295885 (2003-03-01), None
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patent: WO 02083140 (2002-10-01), None
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Colotta, V. et al., J. Med. Chem., vol. 43, pp. 1158-1164, 2000, “1,2,4-Triazolo[4,3-α]quinoxalin-1-one: A Versatile Tool for the Synthesis of Potent and Selective Adenosine Receptor Antagonists.”
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