Process for the preparation of 4(3H)-quinazolinones
申请人:Merrell Dow Pharmaceuticals Inc.
公开号:US04644065A1
公开(公告)日:1987-02-17
A new process for the preparation of 3-(1H-tetrazol-5-yl)-4(3H)-quinazolinones from anthranilic acid derivatives is described herein. Additional reactants used in the process are 4-aminotetrazole and a trialkoxymethane or the reaction can be carried out using the imidic ester obtained from these two compounds.