N-substituted n-nitrosoaminoacetonitriles, process for their preparation and their use
CA 1329200 C · Owner: Bohn, Helmut · Inventors: Schonafinger, Karl; Bohn, Helmut; Beyerle, Rudi
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Pharmacologically useful N-substituted-N-nitrosoaminoacetonitriles of the general formula I (I), wherein, A denotes the radical -CH2- -O-, S(On)-, -N(R2)-, or a direct bond R1 and R2 denote alkyl having 1 to 4 c atoms or phenylalkyl having 1 to 4 C atoms in the alkyl radical n denotes the number 0, 1 or 2, are prepared for example, by nitrosylation of compounds of the general formula II, (II)
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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 May 3, 1994. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended May 3, 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.