S 98 Synthesis of 7-cycloalkylimino substituted 3-amino-6-fluoro-2-methyl-3H-quinazolin-4-ones / E. V. Nosova, G. N. Lipunova, P. A. Slepukhin, V. N. Charushin // Journal of Fluorine Chemistry. - 2012. - in Press online 17 October Рубрики: ХИМИЧЕСКИЕ НАУКИ Кл.слова (ненормированные): FLUORINE-CONTAINING QUINAZOLINONES -- 3-AMINOQUINAZOLIN-4-ONES -- NUCLEOPHILIC DISPLACEMENT REACTIONS Аннотация: A versatile pathway for the synthesis of 7-cycloalkylimino substituted 3-amino-6-fluoro-2-methyl-3H-quinazolin-4-ones from 4,5-difluoroanthranylic acid has been advanced. Nucleophilic amination–defluorination reaction of the 6,7-difluoro derivative of 3-amino-2-methyl-3H-quinazolin-4-one has been established to occur at position 7, as shown by X-ray crystallographic analysis |