Heterocycles [h]-fused to 4-oxoquinoline-3-carboxylic acid. Part VII: synthesis of some 6-oxoimidazo[4,5-h]quinoline-7-carboxylic acids and esters
作者:Maram R. Al-Dweik、Jalal A. Zahra、Monther A. Khanfar、Mustafa M. El-Abadelah、Klaus-Peter Zeller、Wolfgang Voelter
DOI:10.1007/s00706-008-0056-8
日期:2009.2
4-dihydroquinoline-3-carboxylate via thermally induced reactions with model alkanoic acids or via microwave-assisted cyclocondensation with some arene carboxaldehydes. Acid-catalysed hydrolysis of the resulting ester derivatives furnished the corresponding imidazoquinoline-7-carboxylic acids. The structures of these new acid and ester derivatives are based on microanalytical and spectral (IR, MS, and NMR) data
摘要由乙基7,8-二氨基-1制备了一系列2-(取代)-9-环丙基-4-氟-6-氧代-1 H-咪唑并[4,5 - h ]喹啉-7-羧酸乙酯通过与模型链烷酸的热诱导反应或与某些芳烃甲醛的微波辅助环缩合反应制得4,4-二氢喹啉-3-羧酸酯。所得酯衍生物的酸催化水解提供了相应的咪唑并喹啉-7-羧酸。这些新的酸和酯衍生物的结构基于微观分析和光谱(IR,MS和NMR)数据。 图形概要