Novel butyrolactones with antifungal activity
CA 2249239 A1 · Owner: Paulitz, Timothy C. · Inventors: Paulitz, Timothy C.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The bacterium Pseudomonas aureofaciens 63-28 is antagonistic to several plant pathogenic fungi, including Pythium spp. The bacterium produced at least four antifungal, metabolites active against Pythium ultimum and Phytophthora cryptogea when tested in, culture for antifungal activity. Three of these compounds were identified as the novel, butyrolactones: 3-(1-hexenyl)-5-hydroxymethyl-2,5(H)furanone (alternate nomenclature:, (Z)-4-hydroxymethyl-2-(1-hexenyl)-2-butenolide) 3-(1-hexenyl)-5-hydroxy-5-, methyl-, 2,5(H)furanone (alternate nomenclature: (Z)-4-hydroxy-4-methyl-2-(1-hexenyl)-2butenolide) and 3-(1-hexenyl)-5-methyl-2,5(H)furanone respectively, by using , NMR and, GC-MS. All …
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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
- Filed September 30, 1998. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended September 30, 2018.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by September 30, 2020.
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Official CIPO records
Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.