Optically active allyl alcohol and process for producing leucotriene b_ using thereof
CA 1329809 C · Owner: Nissan Chemical Industries, Ltd. · Inventors: Sato, Fumie
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A novel optically active allyl alcohol derivative represented by the following general formulae (I) (II), (III) and (IV) :, (I), (II), (III) (IV), The novel optically active allyl alcohol can be used effectively for producing leucotrienes B4 by the process of reacting an optically active halogen substituted allyl alcohol and a novel optically active acetylene-substituted allyl alcohol.
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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 24, 1994. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended May 24, 2011.
- 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.