Synthesis of 4-chlorokynurenines and intermediates
US11427530B2 · kind B2 · utility
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3References
12Claims
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Assignee
Inventors
Key dates
| Filing date | Feb 11, 2019 |
| Grant date | Aug 30, 2022 |
| Priority date | — |
| Expiry date | Feb 11, 2039 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07B2200/07
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
The invention relates to an overall enantio-specific synthesis of 4-chlorokynurenine compounds, in particular L-4-chlorokynurenine, with improved yields. Large-scale syntheses are disclosed. The invention also relates to novel intermediates in the synthesis of L-4-chlorokynurenine.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.