7-oxabicycloheptane substituted diamide and its congener prostaglandin analogs
CA 1284643 C · Owner: E.R. Squibb & Sons, Inc. · Inventors: Nakane, Masami; Reid, Joyce Ann
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
7-OXABICYCLOHEPTANE SUBSTITUTED DIAMIDE AND ITS CONGENER PROSTAGLANDIN ANALOGS 7-Oxabicycloheptane substituted amide, prostaglandin analogs are provided having the structural formula, wherein m is 0 to 4; A is -CH=CH- or -CH2-CH2-; n is 1 to 5; Q is -CH=CH-, -CH2-, , , , or a single bond; R is CO2H CO2alkyl, CO2 alkali metal, CO2polyhydroxyamine salt -CH2OH, , or ?NR4R5 wherein R4 and R5 are the same or different and are H, lower alkyl hydroxy, lower alkoxy or aryl, at least one of R4 and R5 being other than hydroxy and lower alkoxy; p is 1 to 4; R1 is H or lower alkyl; q is 1 to 12; R2 is H or lower alkyl; and R3 is H, lower alkyl, lower alkenyl lower, alkynyl, aryl, arylalkyl, lower …
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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 June 4, 1991. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended June 4, 2008.
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Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.