Antioxidants, preparation processes and their uses
US6979747B2 · kind B2 · utility
0Cited by
2References
18Claims
0Family size
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Key dates
| Filing date | Dec 16, 2003 |
| Grant date | Dec 27, 2005 |
| Priority date | — |
| Expiry date | Apr 18, 2024 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61K2800/522
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
The invention concerns a process for preparing compounds of general formula (I) wherein R and R′ represent an alkyl radical or an aryl group; and R″ is hydrogen or a CO—R1 group wherein R1 is an alkyl radical or an aryl group; and wherein these compounds are or not in the thiazolidine form; by protecting the N-acyl-L-cysteine to form an intermediate compound; and then by coupling said intermediate compound with S-acylcysteamine hydrochloride or with thiazolidine.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.