Triazole antifungal agent
CA 2217516 C · Owner: Tanaka, Teruo · Inventors: Konosu, Toshiyuki; Oida, Sadao; Tajima, Yawara
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A compound having the formula:, (see Formula I) wherein Ar1 represents a phenyl which may be substituted Ar2, represents a phenyl which may be substituted or a heterocyclic group which may be substituted, R0 represents a hydrogen atom or a lower alkyl; R1 represents a lower alkyl; R2 to R5 represent a hydrogen atom or an alkyl which may be substituted with halogen n represents 0 to, 2; p represents 0 or 1; q r and s represent 0 to 2; A represents a 4to 7-membered carbon ring or a 4- to 7-membered heterocyclic group. The compound of the present invention exhibits excellent antifungal activities.
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 April 5, 1996 and granted January 14, 2003. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended April 5, 2016.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by April 5, 2018.
- 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.