Preparation of substituted alkali metal piperidine-4-carboxylates
US5126455A · kind A · utility
5Cited by
4References
10Claims
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Key dates
| Filing date | Jun 10, 1991 |
| Grant date | Jun 30, 1992 |
| Priority date | — |
| Expiry date | Jun 10, 2011 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07D211/66
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
A method of preparing certain substituted alkali metal 4-carboxy-piperidine salts (I) by alkaline hydrolysis of certain novel substituted 1,3,8-triazaspiro[4.5]decane-2, 4-diones (IV) which in turn are obtained from certain novel substituted chlorosulphonylamido piperidines (III).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.