Benzodiazepine compounds and their use as pharmaceuticals
CA 1318669 C · Owner: Hotten, Terrence Michael · Inventors: Hotten, Terrence Michael; Chakrabarti, Jiban Kumar
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Pharmaceutical thiazolo-1,5benzodiazepines of the formula, in which R1, R2, R3 and R4 are independently hydrogen C1-4, alkyl, C2-4 alkenyl, halogen, C1-4 haloalkyl nitro, C1-4, alkoxy, C1-4 haloalkoxy, C1-4 alkylthio or phenylsulphonyl; in which R5 is a group of the formula, formula where R7 is hydrogen, C1-6 alkyl, C3-7 cycloalkyl C1-4 alkyl benzyl or ZO-C2-6 alkyl where Z is hydrogen or an acyl group R8 is hydrogen or C1-4 alkyl and n is 0 or 1 provided that, when R7 is hydrogen n is 0; in which R6 is hydrogen C1-10, alkyl, C3-7 cycloalkyl, C3-7 cycloalkyl C1-4 alkyl C1-4, haloalkyl, C1-4 alkoxy or C1-4 alkylthio; and in which represents a thiazole ring selected from or , ;, and acid …
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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 June 1, 1993. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended June 1, 2010.
- 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.