Method of obtaining urethane-protected N-carboxyanhydrides of alpha amino acids
US7667051B2 · kind B2 · utility
0Cited by
5References
23Claims
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Assignee
Inventors
Key dates
| Filing date | Aug 17, 2004 |
| Grant date | Feb 23, 2010 |
| Priority date | — |
| Expiry date | Aug 17, 2024 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07D263/44
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
The invention relates to a method of preparing urethane-protected N-carboxyanhydrides of alpha amino acids. The inventive method enables the synthesis of urethane-protected N-carboxyanhydrides of alpha amino acids in the presence of a catalytic quantity of triethylene diamine without the addition of a tertiary amine-type base.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.