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US 7,582,754 B2Granted
Pyrro[1,2-b]pyridazinone compounds
AssigneeAnadys Pharmaceuticals, Inc.
InventorsStephen E. Webber, Frank Ruebsam, Martin Tran, Peter Dragovich, Liansheng Li, Douglas Eric Murphy, David Kucera, Zhongxiang Sun, Chinh Viet Tran
Life of this patent
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Abstract
The invention is directed to pyrro[1,2-b]pyridazinone compounds and pharmaceutical compositions containing such compounds that are useful in treating infections by hepatitis C virus.
Claims4
A compound selected from:
- and tautomers thereof.
A method of making a compound or tautomer thereof having the following formula
- comprising:
- acylating a compound of formula A with a compound of formula B, wherein R is methyl or ethyl,
- and
- cyclizing the compound of formula C to afford the desired compound or tautomer thereof,
1 more element
Dependencies are inferred from the claim text.