6-(2,6-difluorophenyl)-quinoline 、 硝酸 以
硫酸 为溶剂,
以The product was isolated as an off white solid of m.p. 152°-153° C的产率得到6-(2,6-Difluoro-3-nitrophenyl)-quinoline
1-Alkyl-6,8-difluoro-7-heterocyclic-1,4-dihydroquinol-4-one 3-carboxylic acids having antibacterial activity are prepared by conventional cyclization methods.