Imidazole derivatives ii
CA 1330341 C · Owner: Turski, Lechoslaw · Inventors: Biere, Helmut; Rohde, Ralph; Turski, Lechoslaw
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Imidazole derivatives of general formula I (I), wherein, R1 means hydrogen, an optionally substituted C1-10 hydrocarbon or hetaryl residue, or a cyclic ether residue, R2 means hydrogen halogen, an optionally substituted, amino nitro, azide, thiocyanate or cyano group a linear or branched C1-10-alkyl residue optionally substituted with halogen, or -OR1 wherein R1 has the above-mentioned meanings, and, R1 and R2 jointly with the oxygen atom form a saturated or unsaturated 5- to 7-membered ring which can contain still another hetero atom R3 means hydrogen, a linear or branched C1-6alkyl group, or a C1-6-alkoxyalkyl group R4 means -COOR5, -CONR6R7, -CN, or , R5 meaning hydrogen a linear or …
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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 21, 1994. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended June 21, 2011.
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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.