The synthesis of a series of 7-amino-1-cyclopropyl-8-fluoro-1,4-dihydro-4-oxo-1,6-naphthyridine-3-carboxylic acids as potential antibacterial agents
作者:Joseph P. Sanchez、Rocco D. Gogliotti
DOI:10.1002/jhet.5570300402
日期:1993.7
xo-1,6-naphthyridine-3-carboxylic acids has been prepared and evaluated for antibacterial activity. These compounds were prepared by the displacement of the chloro substituent from 7-chloro-1-cyclopropyl-1,4-dihydro-8-fluoro-4-oxo-1,6-naphthyridine-3-carboxylic acid employing the requisite nitrogen nucleophile to produce the title compounds. The naphthyridine acid was synthesized in ten steps from
已经制备了一系列的7-氨基-1-环丙基-1,4-二氢-8-氟-4-氧代-1,6-萘啶-3-羧酸,并评估了其抗菌活性。这些化合物是通过使用必要的氮亲核试剂从7-氯-1-环丙基-1,4-二氢-8-氟-4-氧代-1,6-萘吡啶-3-羧酸中取代氯取代基而制得的产生标题化合物。萘啶酸由2,4-二羟基-3-硝基-5-吡啶甲酸乙酯经十个步骤合成。序列中的关键步骤是使用衍生自3-氨基-2,4-二氯-5-吡啶甲酸乙酯的重氮鎓离子的六氟磷酸盐进行的Schiemann反应。