Pyridonecarboxylic acids as antibacterial agents. 9. Synthesis and antibacterial activity of 1-substituted 6-fluoro-1,4-dihydro-4-oxo-7-(4-pyridyl)-1,8-naphthyridine-3-carboxylic acids
作者:Yoshiro Nishimura、Junichi Matsumoto
DOI:10.1021/jm00392a017
日期:1987.9
Balz-Schiemann reaction of 2-(4-pyridyl)pyridine- and 7-(4-pyridyl)-1,8-naphthyridinediazonium tetrafluoroborates (15 and 27). The 1-ethyl, 1-(2-fluoroethyl), and 1-vinyl derivatives showed in vitro activities as potent as the corresponding 7-(1-piperazinyl) analogues against Staphylococcus aureus 209P JC-1 and Escherichia coli NIHJ JC-2 but were less active against Pseudomonas aeruginosa 12. Among the
通过涉及2-(4-吡啶基)的Balz-Schiemann反应的方法,制备分别在C-1具有乙基,2-氟乙基,2-羟乙基,乙烯基或环丙基的标题化合物(7a-e)。吡啶和7-(4-吡啶基)-1,8-萘啶重氮四氟硼酸盐(15和27)。1-乙基,1-(2-氟乙基)和1-乙烯基衍生物显示出与针对金黄色葡萄球菌209P JC-1和大肠杆菌NIHJ JC-2的相应7-(1-哌嗪基)类似物一样强的体外活性,但铜绿假单胞菌对铜绿假单胞菌12的活性较低。在具有不同C-1取代基的7-(4-吡啶基)衍生物中,发现1-环丙基衍生物7e最具活性。7e的体内功效优于依诺沙星抗金黄色葡萄球菌50774引起的实验性感染的功效。