Basically substituted 3-sulfamoylbenzoic acid derivatives and process for their preparation
US4029787A · kind A · utility
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4Claims
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Assignee
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Key dates
| Filing date | Sep 4, 1975 |
| Grant date | Jun 14, 1977 |
| Priority date | — |
| Expiry date | Sep 4, 1995 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07D295/155
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
Antihypertensively-active 3-sulfamoyl-4-piperazinyl-benzoic acids, optionally substituted in the 2-position by halogen or alkyl, and the esters, amides, and nitriles of these acids are disclosed, as is a method for making these compounds by the reaction of the corresponding 4-halogeno- or 4-alkyl-(or 4-aryl-) sulfonyloxy-benzoic acids (or their esters etc.) with piperazines.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.