Patent · US Expired

Process for the regioselective n-alkylation of quinazolinones

US5610301A · kind A · utility

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5Claims
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Assignee

Inventors

Key dates

Filing dateJul 1, 1993
Grant dateMar 11, 1997
Priority date
Expiry dateJul 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.