Thienyl condensed-pyrazole derivatives
CA 1269983 C · Owner: Shindo, Hirohisa · Inventors: Eigyo, Masami; Shindo, Hirohisa; Matsushita, Akira
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The compounds of the formula (I): (I), (wherein R' and R2 each is hydrogen alkyl, alkoxycarbonyl, carboxy, halogen nitro or trifluoromethyl, or R' and R2 taken together may form alkylene; R' is hydrogen alkyl, alkanoyl or, alkyllsulfonyl; R is hydrogen alkoxycarbonyl, carboxy or halogen;, X is hydrogen alkyl, alkoxy, halogen or hydroxy; and Y is methine or nitrogen) or salts thereof are provided. The compound (I) show potent psychotropic 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
- Granted June 5, 1990. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended June 5, 2007.
- 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.