Substituted 3-(pyridinylamino)-indoles and benzo¬b thiophenes, a process for their preparation and their use as medicaments
CA 2066332 C · Owner: Hoechst Marion Roussel, Inc. · Inventors: Effland, Richard Charles; Klein, Joseph Thomas; Martin, Lawrence Leo
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Substituted 3-(Pyridinylamino)-indoles and benzobthiophenes a process for their, preparation and their use as medicaments The present invention relates to compounds of the formula I (see formula I), where, R1 is hydrogen loweralkyl, loweralkenyl, loweralkynyl arylloweralkyl, aminoloweralkyl, loweralkylaminoloweralkyl formyl, loweralkylcarbonyl, aminoloweralkylcarbonyl or loweralkoxycarbonyl; the group -X-Y= is , R2 and R3 being independently hydrogen or loweralkyl;, W is hydrogen, halogen, hydroxy loweralkoxy, arylloweralkoxy or, where R4 is hydrogen loweralkyl or arylloweralkyl;, R5 is loweralkyl or arylloweralkyl; or alternatively the group R6 being hydrogen, loweralkyl, aryl or …
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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 April 16, 1992 and granted July 29, 2003. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended April 16, 2012.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by April 16, 2014.
- 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
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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.