2,4-diphenyl-1,3-dioxanes
CA 1284330 C · Owner: Brown, George Robert · Inventors: Smithers, Michael James; Brewster, Andrew George; Brown, George Robert
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A C T, 2,4-DIPHENYL-1,3-DIOXANES The invention provides a novel group of 4(Z)- (2,4,5-cis-2,4-diphenyl-1,3-dioxan-5 yl)hexenoic acids of formula I, wherein X is F, Cl, Br, Cp3 CN, CH30 or, N02 and one of Y and Z is hydrogen or fluoro and the other is hydrogen, and their pharmaceutically acceptable salts; together with their pharmaceutical compositions for use in treating a variety of disease conditions. Also provided are methods for the manufacture of novel compounds. Representative compounds are those in which X is 2-cyano or 2-chloro and Y and Z are both hydrogen.
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
- Granted May 21, 1991. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended May 21, 2008.
- 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.