Thiomethylpyridine derivatives, process for the production thereof and medicaments containing them
CA 1213279 A · Owner: Heumann (Ludwig) & Co. Gmbh · Inventors: Engler, Heidrun; Szelenyi, Istvan; Schickaneder, Helmut
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
1 -, "Thiomethylpyridine derivatives, process for the production thereof and medicaments containing them" ABSTRACT, Thiomethylpyridine derivatives having bronchosecretolytic and mucolytic activity according to the formula:, (I), wherein R is a group attached in the 2- 3- or 4-, position of the pyridine ring which corresponds to the following general forumla:, O-S-CH2- (II) wherein Q is a substituted or unsubstituted aryl group or a 5- or 6-membered heterocyclic group which may optionally contain one or more substituents and/or which may be condensed with an optionally substituted phenyl group or with an optionally substituted heterocycle;, R' is a lower alkyl group, a halogen atom or an …
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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 October 28, 1986. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended October 28, 2003.
- 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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Official CIPO records
Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.