Synthesis and Antiviral Activities of Some 2,3-Disubstituted Quinazoline Derivatives
作者:V.D. Gupta、Joginder Singh、Mayank Kinger、Avnish Kumar Arora、Vivek Sheel Jaswal
DOI:10.14233/ajchem.2015.19132
日期:——
In the search of new leads towards potent antiviral agents 2,3-disubstituted quinazoline derivatives were synthesized and tested for their antiviral activity. Anthranilic acid (1) on treatment with an aromatic acid chloride in pyridine gives 2-aryl-4-oxo-3H-benzoxazines (2) which in turn reacts with p-amino benzoic acid (PABA) to afford 2-aryl-3-p-carboxylatophenyl-4-oxo-3H-quinazolines (3). The compound 3 further reacts with amido alcohols in the presence of conc. H2SO4 resulting 3-[benzoic acid-(3-phthalimidomethyl/3-ethyl-3H-2-phenyl-4-oxo-quinazolinyl/1-ethyl-7-hydroxy-4-methyl-2-oxo-quinolinyl)]-2-aryl-3H-quinazoline-4-ones (4). The resulting compounds 4a-f have been evaluated for their in vitro and in vivo antiviral activity against JEV and HSV type-I. The synthesized compounds were characterized through their physical and chemical analysis. The obtained results can be used as the key step for the building of novel chemical entities with interesting antiviral activity compare with the standard drugs.
在寻找新型有效抗病毒药物的过程中,合成了2,3-二取代喹唑啉衍生物,并测试了其抗病毒活性。对氨基苯甲酸(1)在吡啶中与芳香酸酰氯反应得到2-芳基-4-氧代-3H-苯并噁嗪(2),后者再与对氨基苯甲酸(PABA)反应生成2-芳基-3-对羧基苯基-4-氧代-3H-喹唑啉(3)。化合物3在浓硫酸存在下进一步与酰胺醇反应,生成3-[苯甲酸-(3-邻苯二甲酰亚胺甲基/3-乙基-3H-2-苯基-4-氧代喹唑啉基/1-乙基-7-羟基-4-甲基-2-氧代喹啉基)]-2-芳基-3H-喹唑啉-4-酮(4)。合成的化合物4a-f已对对体外和体内抗日本脑炎病毒(JEV)和I型单纯疱疹病毒(HSV-I)进行了评价。所合成的化合物通过物理和化学分析进行了表征。获得的结果可作为构建新型化学实体的关键步骤,与标准药物相比具有有趣的抗病毒活性。