Quinolone antibacterial agents. Synthesis and structure-activity relationships of 8-substituted quinoline-3-carboxylic acids and 1,8-naphthyridine-3-carboxylic acids
作者:Joseph P. Sanchez、John M. Domagala、Susan E. Hagen、Carl L. Heifetz、Marland P. Hutt、Jeffry B. Nichols、Ashok K. Trehan
DOI:10.1021/jm00400a016
日期:1988.5
A series of 7,8-disubstituted 1-cyclopropyl-6-fluoroquinoline-3-carboxylic acids, 7-substituted 1-cyclopropyl-6-fluoro-1,8-naphthyridine-3-carboxylic acids, and 10-substituted 9-fluoropyridobenzoxazine-6-carboxylic acids has been prepared and evaluated for antibacterial activity. The side chains examined at the 7-position (benzoxazine 10-position) included piperazinyl (g), 3-aminopyrrolidinyl (a),
一系列7,8-二取代的1-环丙基-6-氟喹啉-3-羧酸,7-取代的1-环丙基-6-氟-1,8-萘啶-3-羧酸和10-取代的9-氟吡啶并苯并恶嗪已经制备了-6-羧酸并评估了其抗菌活性。在7-位(苯并恶嗪10-位)检测的侧链包括哌嗪基(g),3-氨基吡咯烷基(a),3-(氨基甲基)吡咯烷基(b)和烷基化的3-(氨基甲基)吡咯烷基(cf)。喹诺酮环系统C-8的变异包括氢,硝基,氨基,氟和氯。8氢喹诺酮和1,8-萘啶上侧链对革兰氏阴性生物的体外活性的相对增强比cf更大,b更大,g更大。由8个取代基赋予取代的喹诺酮核的活性的顺序为:F大于Cl大于萘啶大于H大于苯并恶嗪大于NH2大于NO2。这些趋势在体内得以保留。