申请人:Bayer Aktiengesellschaft
公开号:US05072038A1
公开(公告)日:1991-12-10
2,3,4,5-trihalogenobenzene derivatives of the formula ##STR1## in which R is --COOH, --COCl, --COF, --CN, --CONH.sub.2, --CH.sub.2 OH, --CH.sub.2 Cl, --CHCl.sub.2, --CCl.sub.3 or --CHO, R.sup.1 is H, Cl or F, and R.sup.2 is Cl or F, it only being possible for R.sup.1 or R.sup.2 to be F, and processes for their preparation starting from benzonitriles reacted with potassium fluoride. The novel compounds are intermediates for antibacterials such as quinolone carboxylic acids.
化学式为##STR1##的2,3,4,5-三卤代苯衍生物,其中R为--COOH,--COCl,--COF,--CN,--CONH.sub.2,--CH.sub.2 OH,--CH.sub.2 Cl,--CHCl.sub.2,--CCl.sub.3或--CHO,R.sup.1为H,Cl或F,R.sup.2为Cl或F,只有R.sup.1或R.sup.2可以是F,其制备过程始于苯甲腈与氟化钾反应。这些新化合物是喹诺酸类抗菌药物的中间体。