3-piperidyl-4-oxoquinazoline derivatives and pharmaceutical compositionscomprising the same
CA 2280705 A1 · Owner: Japan Tobacco Inc. · Inventors: Sato, Motohide; Kinoshita, Hajime; Katsushima, Takeo
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
3-Piperidyl-4-oxoquinazoline derivatives represented by general formula (I) or pharmaceutically acceptable salts thereof wherein R represents amino , substituted by optionally substituted aryl or optionally substituted heteroaryl, or cyclic amino such as dibenzazepine; n is an integer selected among 1 to 4; and R3 and R4 represent each hydrogen lower alkyl, etc. Because , of having an excellent MTP-inhibitory activity these compounds (I) are , expected as usable in inhibiting the formation of LDL causative of arteriosclerotic diseases and enabling the regulation of TG cholesterol and , lipoproteins such as LDL in the blood and cellular lipids via the regulation of the MTP activity. …
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 11, 1998. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended December 11, 2018.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by December 11, 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.