Synthesis of Some Novel Quinoline-3-carboxylic Acids and Pyrimidoquinoline Derivatives as Potential Antimicrobial Agents
作者:Ola A. El-Sayed、Badr A. Al-Bassam、Maher E. Hussein
DOI:10.1002/1521-4184(200212)335:9<403::aid-ardp403>3.0.co;2-9
日期:2002.12
was replaced by 2‐aminothiazole or 2‐aminopyridine to give 2‐(thiazol‐2‐yl)aminoquinoline‐3‐carboxylic acids 4a—c or 2‐(pyrid‐2‐yl)aminoquinoline‐3‐carboxylic acids 4d—f. Treatment of 5a—c with the same heterocyclic amines at room temperature furnished the corresponding 7‐substituted 2‐chloro‐3‐heteryl‐aminocarbonylquinolines 6a—f. The tetracyclic 9‐substituted thiazolo[3′, 2′:1, 2]‐pyrimido[4, 5‐b]quinolin‐5‐ones
描述了几种喹啉和嘧啶并喹啉衍生物的合成和体外抗菌评价。用磷酰氯或亚硫酰氯处理7-取代的喹啉-2(1H)-one-3-羧酸2a-c产生7-取代的2-氯喹啉-3-羧酸3a-c和7-取代的2 -Chloro-3-chlorocarbonylquinolines 5a-c 分别。化合物3a-c中的2-氯官能团被2-氨基噻唑或2-氨基吡啶取代得到2-(噻唑-2-基)氨基喹啉-3-羧酸4a-c或2-(吡啶-2-基)氨基喹啉-3-羧酸4d-f。在室温下用相同的杂环胺处理 5a-c 得到相应的 7-取代的 2-氯-3-杂基-氨基羰基喹啉 6a-f。四环9-取代的噻唑并[3', 2': 1, 2]嘧啶[4, 5-b] quinolin-5-ones 7a-c 和 10-取代的吡啶并 [1', 2': 1, 2] -pyrimido [4, 5-b] quinolin-6-ones 7d-f 通过加热 5a 合成-C