.

Flexible Flat-Rate Plans

Flat-rate pricing for predictable budgeting

Short-term plans for project- or client-based billing

► Plans and Pricing

Upgrade to enjoy subscriber-only features like email alerts and data export. See the Plans and Pricing

DrugPatentWatch Database Preview

Details for Patent: 5,446,194

« Back to Dashboard

Summary for Patent: 5,446,194

Title: Pharmacologically active catechol derivatives
Abstract:A compound according to formula 1 ##STR1## wherein R.sub.1 and R.sub.2 independently represent hydrogen, carbamoyl which is substituted by an alkyl of 1 to 4 carbon atoms, alkylcarbonyl of 2 to 5 carbon atoms or phenyl carbonyl, X represents halogen nitro or cyano and R.sub.3 represents ##STR2## wherein R.sub.4 represents cyano or alkylcarbonyl of 2 to 5 carbon atoms and R.sub.5 represents carbamoyl which is unsubstituted or substituted with alkyl of 1 to 8 carbon atoms or which is substituted with hydroxyalkyl of 1 to 8 carbon atoms or pharmaceutically acceptable esters and salts thereof, and a pharmaceutically acceptable carrier therefor, as well as pharmaceutical compositions containing said compounds as COMT inhibitors.
Inventor(s): Backstrom; Reijo J. (Helsinki, FI), Heinola; Kalevi E. (Jarvempaa, FI), Honkanen; Erkki J. (Vantaa, FI), Kaakkola; Seppo K. (Helsinki, FI), Kairisalo; Pekka J. (Helsinki, FI), Linden; Inge-Britt Y. (Helsinki, FI), Mannisto; Pekka I. (Helsinki, FI), Nissinen; Erkki A. O. (Espoo, FI), Pohto; Pentti (Helsinki, FI), Pippuri; Aino K. (Espoo, FI), Pystynen; Jarmo J. (Espoo, FI)
Assignee: Orion-yhtyma Oy (Espoo, FI)
Application Number:08/121,617
Patent Claim Types:
see list of patent claims
Compound;
Patent PDF download available with subscription

No matches for this query

Foreign Priority and PCT Information for Patent: 5,446,194

Foriegn Application Priority Data
Foreign Country Foreign Patent Number Foreign Patent Date
Finland864875Nov 28, 1986
United Kingdom8712437May 27, 1987

International Patent Family for Patent: 5,446,194

Country Document Number Estimated Expiration Supplementary Protection Certificate SPC Country SPC Expiration
Argentina243491<disabled in preview>
Austria148626<disabled in preview>
Austria401053<disabled in preview>
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.

For more information try a trial or see the database preview and plans and pricing

How are People Using DrugPatentWatch?

`abc