Process for the diastereoselective alkylation of an ether oxime of the compound nopinone and novel intermediates for the synthesis of diastereospecific 2-amino-nopinone derivatives substituted on carbon 3
US7390926B2 · kind B2 · utility
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Key dates
| Filing date | Jul 12, 2006 |
| Grant date | Jun 24, 2008 |
| Priority date | — |
| Expiry date | Jul 30, 2026 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07C2602/42
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
The invention provides the diastereoselective alkylation of optically active nopinone to form the compound of formula (I) according to scheme A below:in which: The compound of formula (I) is a valuable synthetic intermediate.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.