2,4-dioxo-5-arylidenimino-1,3-pyrimidines
CA 2363310 A1 · Owner: Krutikov, Viktor Iosifovich · Inventors: Krutikov, Viktor Iosifovich; Ashkinazi, Rimma Iliinichna
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The present invention pertains to the field of medicine more precisely to , that of pharmacology and essentially relates to biologically active synthetic derivatives of pyrimidine which are intended for use as antiviral immuno-, stimulating, anti-chlamydia, anti-tuberculosis psycho-depressive, analgesic , and hepatic protection agents. These compounds can further be used in the treatment of malignant tumors as well as in veterinary medicine. The purpose of this invention is to create new chemical compounds having a high and clearly expressed biological activity. To this end this invention involves , synthesising 2,4-dioxo-5-arylidenimino-1,3-pyrimidines of general formula (I) where R …
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 December 4, 1998. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended December 4, 2018.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by December 4, 2020.
- 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.