Method for preparing enantiomerically enriched N-carboxyanhydride
US8119813B2 · kind B2 · utility
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Key dates
| Filing date | Nov 12, 2009 |
| Grant date | Feb 21, 2012 |
| Priority date | — |
| Expiry date | Aug 19, 2030 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07D263/44
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
This disclosure relates to methods for preparing an enantiomerically enriched N-carboxyanhydride of an amino alpha acid of the formula (IIIa) or (IIIb):from a compound of the formula (IIa) or (IIb), respectively:wherein R1, R2, and R3 are as defined in the disclosure.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.