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US 2003/0153565 A1Published application
Imidazopyridin-8-ones
AssigneeAltana Pharma AG
InventorsJorg Senn-Bilfinger, Wilm Buhr, Peter Zimmermann
Life of this patent
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Abstract
Compounds of the formula (1), in which the substituents have the meanings mentioned in the description, are valuable intermediates for preparing active compounds for the prevention and treatment of gastrointestinal diseases.
Claims5
A compound of the formula 1
- 3
- in which
- R1 is hydrogen, methyl, formyl or hydroxymethyl and
- R2 is hydrogen, halogen, carboxyl, —CO-1-4C-alkoxy, hydroxy-1-4C-alkyl, 1-4C-alkoxy-1-4C-all 1-4C-alkoxy-1-4C-alkoxy-1-4C-alkyl, fluoro-1-4C-alkoxy-1-4C-alkyl or the radical —CO—NR3R4,
- where
- R3 is hydrogen, 1-7C-alkyl, hydroxy-1-4C-alkyl or 1-4C-alkoxy-1-4C-alkyl and
- R4 is hydrogen, 1-7C-alkyl, hydroxy-1-4C-alkyl or 4C-alkoxy-1-4C-alkyl,
- or where
- R3 and R4 together, including the nitrogen atom to which both are bonded, are a pyrrolidino, piperidi or morpholino radical,
- or its salts.
7 more elements
Dependencies are inferred from the claim text.