Substituted benzo¢b!!thiophene compounds having activity as selective estrogen receptor modulators
CA 2218756 A1 · Owner: Eli Lilly And Company · Inventors: Sluka, James Patrick; Marron, Kristin Sue; Schmid, Christopher Randall
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The present invention provides compounds with nitrogen sulfur or carbon linked basic side chains of formula (see fig. I), where R1 and R2 are independently hydrogen halo, hydroxy, alkoxy, alkylcarbonyloxy alkoxycarbonyl, alkoxycarbonyloxy, arylcarbonyloxy aryloxycarbonyloxy, or alkylsulfonyloxy; O-SO2-(C4-C6 alkyl), chloro, fluoro, or bromo; W is CHOH C(O), or CH2; Y is -CH2-, -NH-, -NMe-, -S- -SO2-; and R3, and R4 are independently hydrogen alkyl, alkylcarbonyl, alkylamino-carbonyl or arylcarbonyl, or together with the, nitrogen to which they are attached form 1-pyrrolidinyl 1-piperidinyl, or a 5- or 6-membered imide or cyclic amide ring. The present invention also provides pharmaceutical …
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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 October 20, 1997. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended October 20, 2017.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by October 20, 2019.
- 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.