Fluorinated 1-cyclopropyl-7-(substituted-pyridinyl)-1,4-dihydro-4-oxo-3-quinolinecarboxylic acids of the formula
wherein R is hydrogen, R′ and R˝ are hydrogen or fluoro, and Z is 3- or 4-pyridinyl substituted by alkyl groups or substituted alkyl groups, are superior antibacterial agents. They are prepared via a coupling reaction between the corresponding esters (R = alkyl) having a halo group in the 7-position and a substituted (trialkylstannyl)pyridine.
氟化 1-环丙基-7-(取代的
吡啶基)-1,4-二
氢-4-
氧代-
3-喹啉羧酸,其式为
其中 R 是
氢,R′ 和 R˝ 是
氢或
氟,Z 是被烷基或取代烷基取代的 3-或 4-
吡啶基,它们是优良的抗菌剂。它们是通过在 7 位上具有卤代基的相应
酯(R = 烷基)与取代的(三烷基
锡基)
吡啶之间的偶联反应制备的。