Imidazole compounds as immunomodulating agents
CA 1270248 C · Owner: Zutter, Hans · Inventors: Zutter, Hans; Mueller, Hans-Rudolf; Simon, Lionel N.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
There are prepared compounds of the formulae: (1), or, (2), where R is H or lower alkyl and n is an integer from 1 to 5. The compounds of formula (1) can be used to make erythro-9-(2-hydroxy-3-nonyl) hypoxanthine and its homologues and also to make the compounds of formula (2). These compounds are useful as immunomodulators.
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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 12, 1990. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended June 12, 2007.
- 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.