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.
公式为##STR1##的2,3,4,5-三卤苯衍生物,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可能是F,并且从苯腈与氟化钾反应开始制备它们的过程。这些新化合物是喹诺酮羧酸等抗菌剂的中间体。