Phenylethanolaminomethyltetralins
CA 2033243 C · Owner: Sanofi-Synthelabo · Inventors: Cecchi, Roberto; Guzzi, Umberto
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
New phenylethanolaminomethyltetralins of formula (I) <see fig.I>, wherein, - E represents hydrogen (C1-C4)alkyl, (C1-C4)alkoxy, phenyl, nitro halogen, or trifluoromethyl, - L represents hydrogen (C1-C4)alkyl, (C1-C4)alkoxy, phenyl, nitro or halogen, or, - E and L taken together represent a group -CH=CH-CH=CHor -CH2-CH2-CH2-CH2-, and, - G represents hydrogen chloro, hydroxy or an -OG' group, wherein G' represents a (C1-C4)alkyl group either unsubstituted or substituted with hydroxy (C1-C4)alkoxy, (C1-C4)alkoxycarbonyl, carboxy or (C3-C7)cycloalkyl ;, a (C3-C7)cycloalkyl group ; or a (C2-C4)alkanoyl group ;, and salts thereof, are described which showed to be active as intestinal motility …
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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 December 27, 1990 and granted July 7, 1998. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended December 27, 2010.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by December 27, 2012.
- 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.