Cancer remedy comprising anthranilic acid derivative as active ingredient
CA 2400264 A1 · Owner: Tsuruo, Takashi · Inventors: Yamori, Takao; Kawamura, Takashi; Takeyasu, Takumi
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A cancer remedy containing a compound represented by the following formula (I) as the active ingredient. In the formula (I) X represents a group represented , by either of the following formulae (II) and (III). R1 and R2 each represents hydrogen, hydroxy, trihalomethyl, C1-12 alkoxy or alkylthio (substituted) C7-, 11 aralkyloxy, or (substituted) C3-10 alkenyloxy; R4 and R5 represents hydrogen, halogeno, C1-4 alkyl, or C1-4 alkoxy; A represents -O- -S-, -S(=O)-, -S(=O)2-, -CH2-, -OCH2-, -SCH2- -C(=O)-, or -CH(OR6)-; Y represents , hydrogen halogeno, nitro, nitrile, amino, -COOR7 -NHCOR8, or -NHSO2R9; E , represents -C(=O)- -CR10R11C(=O)-, CH2CH2C(=O)-, or -CH=CHC(=O)-; G represents …
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 February 15, 2001. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended February 15, 2021.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by February 15, 2023.
- 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.