Studies on pyridonecarboxylic acids .<b>2</b>. Synthesis and antibacterial activity of 8-substituted-7-fluoro-5-oxo-5<i>H</i>-thiazolo[3,2-<i>a</i>]quinoline-4-carboxylic acids
作者:Jun Segawa、Masahiko Kitano、Kenji Kazuno、Masami Tsuda、Ichiro Shirahase、Masakuni Ozaki、Masato Matsuda、Masahiro Kise
DOI:10.1002/jhet.5570290514
日期:1992.8
A series of 8-substituted-7-fluoro-5-oxo-5H-thiazolo[3,2-a]quinoline-4-carboxylic acids was prepared and evaluated for antibacterial activity. These compounds were synthesized from ethyl 2-mercaptoquinoline-3-carboxylates 17 which were obtained from anilines 11 by a route involving an intramolecular cyclization reaction.
制备了一系列的8-取代的7-氟-5-氧代-5 H-噻唑并[3,2 - a ]喹啉-4-羧酸并评估了其抗菌活性。这些化合物由2-巯基喹啉-3-羧酸乙酯17合成,所述2-巯基喹啉-3-羧酸乙酯是通过涉及分子内环化反应的途径从苯胺11获得的。