Synthesis of New Pyrano-fused Quinolines as Antibacterial and Antimicrobial Agents
作者:Rahul Watpade、Avinash Bholay、Raghunath Toche
DOI:10.1002/jhet.2966
日期:2017.11
This manuscript describes a brief overview of latest research involving the use of pyrano‐fused quinolines as new antibacterial and antimicrobial agents. The synthesis begins with 4‐hydroxy quinolone‐2‐one 1a and 6‐fluoro‐4‐hydroxyquinolin‐2(1H)‐one 1b, which were obtained by condensation of aromatic amines with diethyl malonate. 9‐Fluoro‐6H‐pyrano[3,2‐c]quinoline‐2,5‐dione 3b and 6H‐pyrano[3,2‐c]quinoline‐2
本手稿简要介绍了最新研究的概况,涉及使用吡喃基稠合喹啉作为新型抗菌剂和抗菌剂。合成从4-羟基喹诺酮-2-酮1a和6-氟-4-羟基喹啉-2(1 H)-1b开始,它们是通过芳族胺与丙二酸二乙酯的缩合反应制得的。9-氟-6- ħ吡喃并[3,2- c ^ ]喹啉-2,5-二酮3B和6 ħ吡喃并[3,2- c ^ ]喹啉-2,5-二酮3A被反应与丙二酸二乙酯获得的在乙酸铵存在下。这些吡喃喹诺酮在三氯氧化磷中回流时转化为5-氯-2 H-吡喃并[3,2 - c ]喹啉-2-one 4a和5-氯-9-氟-2- H-吡喃并[3,2 - c ]喹啉-2-one 4b。具有反应性的化合物4a和4b中的氯官能团可以被各种亲核试剂如胺和氨基酸取代。所得氨基吡喃并[3,2– c ]喹啉表现出中等至优异的抗菌和抗菌活性。