Aroyl substituted dihydro-1,4-thiazines
CA 1279870 C · Owner: Ciba-Geigy Ag · Inventors: Renfroe, Harris B.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Aroyl substituted dihydro-1,4-thiazines Abstract, Compounds of the formula I, I wherein Ar is pyridyl, phenyl or phenyl substituted by halogen, halo-C1-4-alkyl, C1-4-alkoxy or carboxy-C1-4alkyl, n is zero, one or two,R1 is hydrogen C1-4-alkyl, heterocyclyl-C2 4-alkyl, amino-C2-4-alkyl C1-4-alkyl-, amino C2-4 alkyl, di2C1-4 alkylamino-C2-4 alkyl or C1-4-alkanoyl, and R2 is hydrogen, carboxy-C1-4-alkyl or C1-4-alkoxy-carbonyl-C1-4-alkyl are disclosed as well as their preparation, pharmaceutical compositions containing the same and the use thereof as antirheumatic agents.
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Listed from its CIPO record in Patent Yard's archive of Canadian patents past their term. Its claims, description and drawings are in the CIPO record and on Google Patents, and the Claude kit works from them.
Why it's free to use
- Granted February 5, 1991. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended February 5, 2008.
- We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
Timeline
Timeline From CIPO dates
Sources & verification
Official CIPO records
Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.