Production of 1,4-dihydropyridinecarboxylic acids
US4483985A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jan 19, 1981 |
| Grant date | Nov 20, 1984 |
| Priority date | — |
| Expiry date | Jan 19, 2001 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07D211/90
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
The invention relates to a process for the production of 1,4-dihydropyridinecarboxylic acid compounds which involves hydrolysis, under alkaline conditions and in a temperature range from 10.degree. to 100.degree. C., of an ester group which contains an electron-attracting group. The invention also includes novel compounds made according to the invention as well as compositions containing said novel compounds. Also included in the invention are methods for the use of said compounds and compositions. The compounds obtained according to the process of the invention are useful because of their circulation-influencing action and are also useful as intermediates for the preparation of compounds having circulation-influencing action.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.