(22r,23r,24s)-22,23-epoxy-2.-3.-isopropylidene-dioxy- .beta.-homo-7-oxa-5. -stigmastan-6-one, process for preparation thereof and plant growth regulating composition containing the same
CA 1330987 C · Owner: Kakiuchi, Toshihito · Inventors: Kakiuchi, Toshihito; Kamuro, Yasuo; Takatsudo, Suguru
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
There is described the compound (22R,23R,24S)- 22,23-epoxy-2.alpha. 3.alpha.-isopropylidenedioxy-B-homo-7-oxa-5.alpha.stigmastan-6-one which is a valuable plant growth regulator. The process of preparing this compound by oxidizing (22E,24S)- 2 .alpha. 3 .alpha.-isopropylidenedioxy-Bhomo-7-oxa-5 .alpha.-stigmastan-6-one is also disclosed as, well as a composition containing same with an agrochemically acceptable carrier, and a method of regulating the growth of plants by spraying the composition onto the plants.
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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 July 26, 1994. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended July 26, 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.