4-chloro-3-sulfamoylbenzoic acid hydrazides, a process for the preparation thereof, pharmaceutical compositions containing them and their use as medicaments
CA 1332739 C · Owner: Molnar, Erzsebet Nee Bako · Inventors: Korbonits, Dezso; Molnar, Erzsebet Nee Bako; Marmarosi, Katalin Nee Kellner
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The present invention relates to novel compounds of the general formula, (I), wherein, R is a hydrogen atom or a trifluoromethyl carboxy, C2-5-, alkoxycarbonyl, cyano, benzoyl sulfamoyl or C1-4 alkylsulfonyl, group; R1 is a hydrogen atom or a linear or branched chain C1-4alkyl, C1-4 alkylthio, C1-4 alkysulfonyl benzylthio, benzyl-, sulfonyl, phenyl, hydroxy or a mercapto group and, R2 is a hydrogen or chlorine atom as well as their pharmaceutically acceptable salts. The compounds according to the invention possess diuretic and saluretic activity with an advantageous Na/k ratio.
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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
- Granted October 25, 1994. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended October 25, 2011.
- 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.