Heart active derivatives of 1-amino-2,3-dihydroxy propane
CA 1093096 A · Owner: Aktiebolaget Hassle · Inventors: Samuelsson, Gustav B.R.; Lundgren, Bo T.; Carlsson, Enar I.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Compounds of the general formula wherein R1 is selected from the group consisting of methyl ethyl. propyl, methoxy, propargyloxy, cyano allyloxy, acetyl, cyanomethyl, hydroxymethyl CH3OCH2H2NHCOCH2O-, morpholino, pyrrolidino and pyrrolyl R2 and R3 are the, same or different and are each selected from the group consisting of hydrogen alkoxyalkoxy, alkyl, cyano, hydroxy, halogen alkoxy, and hydroxymethyl, provided that R2 and R3 are not both hydrogen n is an integer 2, 3 or 4, and, X is -O- or -S-. These compounds find pharmaceutical use in the treatment of cardiovascular disorders.
Read the whole patent
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 January 6, 1981. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended January 6, 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.