Process for preparing 2-phenylimidazo 2,1-b benzothiazole compounds and salts thereof
CA 1190231 A · Owner: Yamanouchi Pharmaceutical Co. Ltd. · Inventors: Arima, Hideki; Murase, Kiyoshi; Niigata, Kunihiro
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Novel 2-phenylimidazo(2,1-b)benzothiazole compounds shown by general formula I, I, and the salts thereof a process of producing the compounds, and pharmaceutical compositions containing the compounds. The compounds of this invention act on immune response in particular, suppress a delayed type hypersensitivity reaction, and are useful as antiallergic agents anti-, rheumatics, therapeutic agents for autoimmune diseases and suppressants of rejection at tissue transplantation and skin graft.
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 July 9, 1985. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended July 9, 2002.
- 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.