Processes and intermediates for preparing 3(S)-[(5-chloro-1H-indole-2-carbonyl)-amino]-2(R)-hydroxy-4-phenyl-butyric acid
US6410750B1 · kind B1 · utility
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Key dates
| Filing date | May 5, 2000 |
| Grant date | Jun 25, 2002 |
| Priority date | — |
| Expiry date | May 5, 2020 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07B2200/07
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
The present invention provides novel processes for preparing 3(S)-[(5-chloro-1H-indole-2-carbonyl)-amino]-2(R)-hydroxy-4-phenyl-butyric acid. Also provided are novel intermediates used in those processes. Further, the 3(S)-[(5-chloro-1H-indole-2-carbonyl)-amino]-2(R)-hydroxy-4-phenyl-butyric acid prepared by the novel processes can be further reacted to yield known indole 2-carboxamides and derivatives thereof possessing glycogen phosphorylase inhibitory activity, which are useful in the treatment of mammals, especially human beings, having glycogen phosphorylase dependent diseases or conditions.
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