Canadian application, no grantCanada
Process for the preparation of midazolam
CA 2374127 A1 · Owner: Esser, Grant L. · Inventors: Bhatia, Ashok V.; Dhaon, Madhup K.; Esser, Grant L.
Overview
Drawings and full text
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The present invention provides a process for the synthesis of Midazolam of formula (I) from a compound of formula (II) using thermodynamic, basic workup , conditions. Additional steps to isolate the pure bulk product follow.
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 May 23, 2000. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended May 23, 2020.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by May 23, 2022.
- We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledMay 23, 2000
GrantedNo grant recorded
Term endedMay 23, 2020
Patent numberCA 2374127 A1
Classification (IPC)C07D487/04 +2 more
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.