5 substituted hydantoins
US8420683B2 · kind B2 · utility
3Cited by
0References
10Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 3, 2008 |
| Grant date | Apr 16, 2013 |
| Priority date | — |
| Expiry date | Jan 15, 2030 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07D233/80
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
The present invention relates to 5-substituted hydantoins, a process for the preparation of 5-substituted hydantoins and the use of 5-substituted hydantoins in the preparation of enantiomerically enriched α-amino acids. Furthermore, the present invention relates to the preparation of pharmaceutically active products such as perindopril and ramipril using the novel 5-substituted hydantoins.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.