Thiazole derivatives
CA 2074175 A1 · Owner: Timmermann, Hendrik · Inventors: Van Der Goot, Henderikus; Eriks, John C.; Timmermann, Hendrik
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
New thiazole derivatives which are a substituted 4- or 5-(.omega.-aminoalkyl)thiazole with formula (1) wherein X represents a, nitrogen atom and Y represents a sulphur atom or alternatively X represents a sulphur atom and Y represents a nitrogen atom n is 1-6, R1 represents a straight or branched alkyl group containing 1-4 carbon atoms and R2 represents an amino group a process for, the preparation of said compounds by ring closure of a 3-bromo-.omega.-phthalimidoalkan-2-one with thiourea under mild conditions followed by hydrazinolysis or hydrolysis with diluted hydrochloric acid of the resulting phthalimido derivatives and medicaments containing said derivates with formula (1) for the …
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
- Filed January 18, 1991. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended January 18, 2011.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by January 18, 2013.
- 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.