Process for the preparation of dihydropyridinecarboxylic acids
US5475111A · kind A · utility
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1References
10Claims
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Assignee
Inventor
Key dates
| Filing date | Aug 17, 1993 |
| Grant date | Dec 12, 1995 |
| Priority date | — |
| Expiry date | Aug 17, 2013 |
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 preparation of optically pure 1,4-dihydropyridinemonocarboxylic acids of the formula I ##STR1## in which the substituents have the meanings mentioned in the description.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.