Find generic entry opportunities
Manage your formulary budget
Anticipate generic drug launch
Drug patents …
… from Kazakhstan to Kalamazoo
Proactively manage your pharmacy inventory
Deep knowledge on
small-molecule drugs and
the 110,000 global patents
|Title:||Phosgene-free process for preparing carbamates|
|Abstract:||A phosgene-free method for preparing a carbamate from a compound containing an amine group involves reacting the compound with an alkylating agent in the presence of carbon dioxide and cesium carbonate. A reaction can take place under standard pressure and temperature conditions and produces carbamates in a high yield with low by-product formation.|
|Inventor(s):||Lee; Byung H. (Kalamazoo, MI)|
|Assignee:||Pharmacia& Upjohn Company (Kalamazoo, MI)|
Patent Claim Types:|
see list of patent claims
Field: Organic fine chemistry
Back Citations: 3rd percentile
Forward Citations: 0th percentile
|Patent Number||Expiration Date|
|6,528,678||March 04, 2007|
|Country||Document Number||Estimated Expiration||Supplementary Protection Certificate||SPC Country||SPC Expiration|
|European Patent Office||1334084||► subscribe|
| This preview shows a limited data set|
Subscribe for full access, or try a Trial
The estimated expiration dates shown above are derived by simply adding 20 years to the priority date.
Due to the complexity of determining patent expirations even in a single country, compounded by the diversity of global patent laws, it is advisable to have patent counsel verify freedom to operate.
Export unavailable in trial.
Subscribe for complete access.