Process for producing optically active .beta. -amino alcohols
CA 2404668 A1 · Owner: Kataoka, Michihiko · Inventors: Kataoka, Michihiko; Sakamoto, Keiji; Shimizu, Sakayu
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A process for the production of optically active .beta.-amino alcohols of the general formula (II) which comprises treating an enantiomeric mixture of an .alpha.-aminoketone of the general formula (I) or a salt thereof with at least one microorganism selected from the group consisting of those belonging to the genus Morganella and so on to form a .beta.-amino alcohol having a desired optical activity in a high yield with high selectivity.
Read the whole patent
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
- Filed March 2, 2001. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended March 2, 2021.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by March 2, 2023.
- 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.