Indole, benzofuran, benzothiophene containing lipoxygenase inhibiting compounds
CA 1306744 C · Owner: Gunn, Bruce P. · Inventors: Brooks, Dee W.; Gunn, Bruce P.; Summers, James B. Jr.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Compounds of the formula: wherein R1 is (1) hydrogen, (2) C1 to C4 alkyl (3) C2 to C4 alkenyl, or (4) NR2R3, wherein R2 and R3 are independently selected from (1) hydrogen (2) C1 to C4 alkyl, and (3) hydroxyl, but R2 and R3 are not simultaneously hydroxyl; wherein X is oxygen, sulfur, SO2, or NR4 wherein R4 is (1), hydrogen, (2) C1 to C6 alkyl (3) C1 to C6 alkoyl, (4) aroyl, or (5) alkylsulfonyl; A is selected from C1 to C6 alkylene and C2 to C6 alkenylene; n is 1-5;, Y is selected independently at each occurrence from (1) hydrogen, (2) halogen, (3) hydroxy, (4) cyano (5) halosubstituted alkyl, (6) C1 to C12 alkyl, (7) C2 to C12 alkenyl, (8) C1 to C12 alkyoxy (9) C3 to C8 cycloalkyl, (10) …
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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 August 25, 1992. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended August 25, 2009.
- 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
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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.