Process for the preparation of prostanoids
CA 1164006 A · Owner: The Australian National University · Inventors: Rickards, Rodney W.; Christie, Robert M.; Gill, Melvyn
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Compounds of the general formula I are disclosed as useful intermediates in the preparation of prostanoids: I, (wherein A represents O or H, ORz;, Rz represents h?drogen or a protecting group; Rx represents ?drogen or a protecting group; and Ry represents halogen, a substituted thio group di-substituted amino group, or a group of the formula R2, and R2 represents a straight-or branched-chain alkyl alkenyl or alkynyl group which may optionally be substituted by one or more carboxyl, carboxylic acid ester, or free or protected hydroxyl, thiol, aldehyde or keto groups;, with the provisos that Rx is not hydrogen when A is O and Ry is R2; and that when A is H, ORz Ry is R2 and Rx and Rz are not …
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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 March 20, 1984. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended March 20, 2001.
- 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.