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US 5,346,904 AGranted
Sulphonyl compound
AssigneeByk Gulden Lomberg Chemische Fabrik GmbH
InventorsDieter Flockerzi, Kurt Klemm
Life of this patent
Estimating the term…
Abstract
Compound of the formula I ##STR1## wherein the substituents have the meanings given in the description, are new active bronchodilators.
Claims9
A compound of formula I ##STR8## wherein R1 denotes 1-4C-alkyl,
- R2 denotes hydrogen (H), 1-4C-alkyl or 1-4C-alkoxy,
- R3 denotes hydrogen (H), 1-4C-alkyl or 1-4C-alkoxy,
- R4 denotes hydrogen (H), methyl or methoxy,
- R5 denotes hydrogen (H) or 1-4C-alkyl and
- R6 denotes 1-4C-alkyl, phenyl or substituted phenyl with one or two identical or different substituents selected from the group consisting of 1-4C-alkyl, 1-4C-alkoxy, hydroxyl and halogen,
- or a salt thereof.
3 more elements
A compound of claim:
- which is rac-cis-8,9-Dimethoxy-1,2,3,4,4a,10b-hexahydro-6-(4-methylsulphonamidophen yl)-2-methylbenzo[c][1,6]naphthyridine, or a salt thereof.
Dependencies are inferred from the claim text.