New "ofloxacin" type antibacterial agents. Incorporation of the spiro cyclopropyl group at N-1
作者:John S. Kiely、Mel C. Schroeder、Josephine C. Sesnie
DOI:10.1021/jm00118a026
日期:1988.10
The first example incorporating a spiro cyclopropyl group into an "ofloxacin" type of quinolone antibacterial agent has been prepared by potassium fluoride mediated ring closure of the hydroxymethyl cyclopropyl intermediate to give 9'-fluoro-7'-oxo-10'-(1-piperazinyl)spiro[cyclopropane-1,3'(2'H)-[7H] pyrido[1,2,3-de][1,4]benzoxazine]-6'-carboxylic acid. Analogues were made by substitution at C-7 by
通过将氟化甲基介导的羟甲基环丙基中间体的闭环生成9'-氟-7'-氧代10'-(1-),制备了将螺环环丙基掺入“氧氟沙星”型喹诺酮抗菌剂的第一个实例。哌嗪基)螺[环丙烷-1,3'(2'H)-[7H]吡啶基[1,2,3-de] [1,4]苯并恶嗪] -6'-羧酸。通过在C-7处被各种复杂的胺取代来制备类似物。评估这些化合物的抗菌活性。与母体氧氟沙星相比,制备和检查的所有实施例均显示出体外最小抑菌值和体内小鼠保护作用减弱。