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US 6,686,356 B2Granted
Pyridoquinoxaline antivirals
AssigneePharmacia & Upjohn Company
InventorsJoseph Walter Strohbach, Steven P. Tanis, Malcolm Wilson Moon
Life of this patent
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Abstract
The present invention provides a compound of formula I or a pharmaceutically acceptable salt thereof wherein R1 and R2 are as defined in the specification. The compounds are useful for the treatment of viral infections.
Claims25
A compound of formula I
- or a pharmaceutically acceptable salt thereof
- wherein R1 is F, Cl, Br, CN or NO2;
- R2 is C1-6alkyl, optionally substituted by one to three OR3, NR3R3, aryl or het;
- R3 is H or C1-4alkyl;
- het is morpholinyl, piperidinyl, piperazinyl, pyrrolidinyl, pyridyl, imidazolyl, azetidyl, tetrahydrofuranyl or imidazolidinyl;
- and aryl is a phenyl or pyridyl radical, attached via a carbon atom, optionally substituted by one to three halogen, OR3 or NR3R3.
3 more elements
Dependencies are inferred from the claim text.