Inhibitors of dipeptidyl peptidase iv
CA 2407663 A1 · Owner: Pitt, Gary Robert William · Inventors: Evans, David Michael; Pitt, Gary Robert William
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Compounds according to general formula (1) wherein R1 is H or CN, X1 is S, O, SO2 or CH2 X2 is O, S or CH2, X3 is NR5 or a carbonyl or thiocarbonyl group and R4 is R6R7N, R8(CH2)qOC(=O), R8(CH2)qOC(=S) R6R7NC(=O), R6R7NC(=S); , R8(CH2)qC(=O) R8(CH2)qC(=S) or R8(CH2)qSO2, m is 1-3 and n is 0-4 are new. The compounds of the invention are inhibitors of dipeptidyl peptidase IV. Pharmaceutical compositions of the compounds of the invention or , pharmaceutically acceptable salts thereof are useful in the treatment , of,inter alia type 2 diabetes.
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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 26, 2001. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended April 26, 2021.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by April 26, 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.