Process for the regioselective n-alkylation of quinazolinones
US5610301A · kind A · utility
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Key dates
| Filing date | Jul 1, 1993 |
| Grant date | Mar 11, 1997 |
| Priority date | — |
| Expiry date | Jul 1, 2013 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07D239/91
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
A process for the regioselective N-alkylation of 2-alkyl-5,6,7 or 8-substituted-4(3H)-quinazolinones in the presence of lithium salts.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.