1-Ethyl-1,4-dihydro-4-oxo-7-(pyridinyl)-3-quinolinecarboxylic acids. II. Synthesis
作者:Philip M. Carabateas、R. Pauline Brundage、Karl O. Gelotte、Monte D. Gruett、Roman R. Lorenz、Chester J. Opalka、Baldev Singh、William H. Thielking、Gordon L. Williams、George Y. Lesher
DOI:10.1002/jhet.5570210655
日期:1984.11
4-dihydro-4-oxo-7-pyridinyl-3-quinolinecarboxylic acids with a range of substituents on the pyridine ring is described. Starting with the appropriately substituted aniline and using the first two steps of the Gould-Jacobs quinoline synthesis the 7-pyridinyl-3-quinolinecarboxylates can be obtained. Ethylation at the 1-position and hydrolysis of the ester group gives the desired acid products. These compounds have significant
描述了在吡啶环上具有一系列取代基的各种1-乙基-1,4-二氢-4-氧代-7-吡啶基-3-喹啉羧酸的制备。从适当取代的苯胺开始,并使用Gould-Jacobs喹啉合成的前两个步骤,可以获得7-吡啶基-3-喹啉羧酸盐。1位上的乙氧基化和酯基的水解可得到所需的酸产物。这些化合物具有显着的抗菌活性:1-乙基-1,4-二氢-4-氧代-7-(4-吡啶基)-3-喹啉羧酸目前正在临床研究中,而7-(2,6-二甲基-4-吡啶基)-1-乙基-1,4-二氢-4-氧代-3-喹啉羧酸正在进一步评估中。