Highly enantiomerically pure lactam-substituted propanoic acid derivatives and methods of making and using same
US7214803B2 · kind B2 · utility
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4Claims
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Key dates
| Filing date | Mar 31, 2005 |
| Grant date | May 8, 2007 |
| Priority date | — |
| Expiry date | Jun 19, 2025 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02P20/52
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
The present invention relates to highly enantiomerically pure lactam-substituted propanoic acid derivatives and methods of making and using therefor. The invention involves a multi-step synthesis to produce the lactam compounds. In one step of the reaction sequence, asymmetric hydrogenation of a lactam-enamide was performed to produce an intermediate that can ultimately be converted to a series of pharmaceutical compounds. The invention also contemplates the in situ synthesis of an intermediate of the multi-step synthesis, which provides economic advantages to the overall synthesis of the lactam compounds.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.