Optically active amino acid derivatives and processes for the preparation of the same
US6706916B1 · kind B1 · utility
1Cited by
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13Claims
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Key dates
| Filing date | Aug 17, 2001 |
| Grant date | Mar 16, 2004 |
| Priority date | — |
| Expiry date | Aug 17, 2021 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07B2200/07
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
In producing optically-active amino acid benzyl esters by reacting optically-active amino acids with benzyl alcohols, hydrazines are present in the reaction system, or the compounds are reacted in the absence of oxygen, or the compounds are reacted in the absence of oxygen while hydrazines are present in the reaction system. The processes are simple and give optically-active amino acid benzyl esters of high optical purity.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.