Therapeutic agent for osteoporosis and diazepine compound
CA 2120939 A1 · Owner: Japan Tobacco Inc. · Inventors: Nakagawa, Takashi; Shindo, Masanori; Chiba, Kenji
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A therapeutic agent for osteoporosis comprising an azepine, compound of the formula (I), or a pharmaceutically acceptable salt thereof as an active ingredient, a method for treating osteoporosis comprising administering said compound and a use of said compound for the production of a therapeutic agent for osteoporosis. In the above formula each symbol is as defined in the, following. Ar is aryl or heteroaryl; X is an oxygen atom or a sulfur atom:, W is -N(R36)- -O- or -S-;, Ring Q is selected from the following group , , and , X and Y combinedly form =N-N=C(R6)- =N-C(R5)=C(R6)-, =C(R5)-N=C(R6)-, =N-O-CO- or -N-N(R5)-CO-.
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 October 12, 1992. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended October 12, 2012.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by October 12, 2014.
- 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.