Derivatives of r,s-2-(2-hydroxyethylamino)-1- phenyl-ethylamine, and a process of obtaining them
CA 1100146 A · Owner: Dso "Pharmachim" · Inventors: Michaylov, Ventzel G.; Georgiev, Atanas G.; Konstantinova, Kina V.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
New R,S-2-(2-hydroxyethylamino)-1-phenyl ethylamine derivatives of the general formula:, wherein R represents hydrogen or an allyl propargyl or benzyl, radical are obtained by reacting R,S-2-(2-hydroxyethylamino)- 1-phenyl-ethylamine of the formula:, with carbon disulphide to form R,S-N-2-(2-hydroxyethylamino)-1phenyl-ethylamide of dithiocarbonic acid of the formula:, which optionally is further reacted with an allyl propargyl, or benzyl halide to yield the corresponding oster-amide. The new derivatives of the invention are valuable intermediates in the synthesis of tetramisole.
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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 April 28, 1981. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended April 28, 1998.
- 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.