Studies on biologically active haloganenated compounds. III. Synthesis and antibacterial activity of 7-fluoromethyl-1,8-naphthyridine and quinoline derivatives.
作者:JUNICHI TANI、YOSHITAKA MUSHIKA、TOTARO YAMAGUCHI
DOI:10.1248/cpb.30.3517
日期:——
Some novel compounds having a fluoromethyl group at the C7-position on 1-alkyl-1, 4-dihydro-4-oxo-1, 8-naphthyridine-3-carboxylic acid and on 1-alkyl-1, 4-dihydro-4-oxo-quinoline-3-carboxylic acid were prepared and their antibacterial activities were examined in vitro. In a series of quinolines, no striking difference of antibacterial activities between the 7-fluoromethyl and 7-methyl derivatives was observed. However, the activity was increased in the series of 1, 8-naphthyridines by replacement of the methyl group with the fluoromethyl group. As regards the N1-substituents, the 2-fluoroethyl compound showed a higher activity than the others.
制备了一些在 1-烷基-1,4-二氢-4-氧代-1,8-萘啶-3-羧酸和 1-烷基-1,4-二氢-4-氧代喹啉-3-羧酸的 C7 位上带有氟甲基的新型化合物,并对其抗菌活性进行了体外检测。在一系列喹啉类化合物中,7-氟甲基和 7-甲基衍生物的抗菌活性没有明显差异。不过,在 1,8-萘啶系列中,用氟甲基取代甲基后,活性有所提高。在 N1 取代基方面,2-氟乙基化合物的活性高于其他化合物。